Camunda Core

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The Camunda Core extension provides a synchronization of CELUM users and groups with Camunda and other utilities. Additionally it gives access to the Camunda REST API via CELUM (/main/camunda/*), so that Workflow extensions in CELUM only need to communicate with CELUM directly.

Properties

To be configured in {home}/appserver/conf/custom.properties

General

camundaCore.license

type: string, required: yes, default: -

The license key for the plugin (product: camundaCore), provided by brix.

camundaCore.camunda.url

type: string, required: yes, default: -

The URL to the camunda REST API. Has to start with http or https and end in /. E.g. http://localhost:8080/engine-rest/

camundaCore.camunda.username

type: string, required: no, default: -

The username for the Camunda REST API (only required if it is protected).

camundaCore.camunda.password

type: string, required: no, default: -

The password for the Camunda REST API (only required if it is protected).

camundaCore.web.token

type: string, required: no, default: -

The token for the services which don't require login (e.g. mail service) to protect them.

User and Group Synchronization

Only synchronizes the following events immediately, the rest is done by the sanitize job:

  • user/group added to group
  • group/user deletion
  • group/user creation (only if everything is synced)

This ensures, that the users can immediately work with Camunda as soon as they are created in CELUM.

Since v2.0 all groups with aliases will be synced.

camundaCore.userSync.enabled

type: boolean, required: no, default: true

Enables/disables the user and group synchronization. Server restart required.

camundaCore.userSync.sanitize.cronExpression

type: string, required: no, default: 0 0 1 * * ? (each night at 1 am)

Quartz cron trigger that tells the sanitize job when and how often it should run.

camundaCore.tasks.cleanup.cronExpression

type: string, required: no, default: 0 0 0 2 * ? (each night at 2 am)

Quartz cron trigger that tells the historic tasks cleanup job when and how often it should run.

camundaCore.userSync.groups

type: comma-separated list of group ids, required: no, default: - (all groups), version: <v2.0

The groups (and members of those groups) which should be synchronized. If this property is not set, all groups are synchronized.

camundaCore.userSync.groupsRecursive

type: boolean, required: no, default: false, version: < v2.0

Synchronize all the sub-groups of the specified groups as well. Users are always resolved recursively because Camunda doesn't support hierarchical groups (only users can be members of groups and not other groups).

camundaCore.userSync.prefix.user

type: string, required: no, default: CelumUser

The prefix to use for the CELUM users in Camunda. E.g. the user with ID 123 and the default prefix would become CelumUser123 in Camunda.

camundaCore.userSync.prefix.group

type: string, requierd: no, default: CelumGroup, version: alias-support 2.0+

The prefix to use for the CELUM groups in Camunda. E.g. the group with ID 456 and the default prefix would become CelumGroup456 in Camunda.

If ther is an alias for the group the alias is taken without prefix.

camundaCore.userSync.groupType

type: string, required: no, default: CELUM

The group type of CELUM groups in Camunda. This is just a string and can be anything, but it can be helpful for searching the synchronized groups in Camunda.

camundaCore.username

type: string, required: no, default: $firstname $lastname [$username], version: 2.0+

Defines how a user is displayed. Available placeholders: $firstname, $lastname, $username, $id.

camundaCore.groupname

type: string, required: no, default: $groupname, version: 2.0+

Defines how a group is displayed. Available placeholders: $groupname, $id.

Password Checker

The password checker provides an internal service and a controller to verify passwords.

The controller accepts POST requests to /main/camundaCore/password?userId=...&password=.... userId is optional (defaults to the logged-in user). The following responses are possible:

  • 403 FORBIDDEN (<v2.0 406 NOT ACCEPTABLE): the user sending the request does not match the specified user id (can only happen if loggedInUserOnly is set to true)
  • 405 NOT ALLOWED: the user is deactivated
  • 404 NOT FOUND: the user wasn't found
  • 423 LOCKED (<v2.0 403 FORBIDDEN): the user was locked because the maximum number of incorrect attempts was reached within the configured time interval
  • 406 NOT ACCEPTABLE (<v2.0 401 UNAUTHORIZED): the password was wrong (could probably also happen if the user's CELUM session timed out)
  • 401 UNAUTHORIZED (only v2.0+): the session expired
  • 200 OK: password was correct

To be able to use the password checker, the following table has to be created:

create table camunda_password_check_attempts (
    id bigint auto_increment primary key,
    user_id bigint not null,
    timestamp timestamp not null
);
camundaCore.passwordChecker.maxFails

type: integer, required: no, default: 5

After failing the password check this many times in the specified time interval, the user will be deactivated.

camundaCore.passwordChecker.intervalInMinutes

type: integer, required: no, default: 5

The time interval in minutes.

camundaCore.passwordChecker.resetAfterSuccess

type: boolean, required: no, default: true

Delete the failed attempts after successful check?

camundaCore.passwordChecker.controller.loggedInUserOnly

type: boolean, required: no, default: true

If set to false, every logged-in user can check the password of any user. Should not be false, otherwise it is possible to lock out other users by intentionally entering a wrong password enough times. This only affects the controller and not the internal password check service.

Absences

There is an internal service and a controller to manage the absences. Tasks which are directly assigned to users can be automatically re-assigned to the replacement unless they already have the same task.

The controller provides the following methods to manage absences:

  • GET main/camundaCore/absence?userId=...&active=... both parameters are optional. For userId, the default is the logged-in user, and the default for active is true (only return absence if it is active). Returns an Absence JSON object.
  • GET main/camundaCore/absence/list?active=... only available if loggedInUserOnly is set to false. Active is optional and the default is true (only return active absences, not those in the future). Returns a list of Absence JSON objects.
  • POST main/camundaCore/absence creates or updates an absence. Has to be sent as absence JSON object in the body. userId is optional, the default is the logged-in user.
  • DELETE main/camundaCore/absence?userId=... userId is optional, the default is the logged-in user.

Response codes:

  • 403 FORBIDDEN (<v2.0 406 NOT ACCEPTABLE): the user sending the request does not match the specified user id (can only happen if loggedInUserOnly is set to true)
  • 404 NOT FOUND: no absence found for specified userId
  • 400 BAD REQUEST: wrong date format
  • 201 CREATED: the absence was created (wasn't an update)
  • 401 UNAUTHORIZED (only v2.0+): the session expired
  • 200 OK

Absence JSON object:

{
    "id": ...
    "userId": 487
    "replacementId": 430,
    "from": "2020-03-17",
    "to": "2020-03-17",
}

To be able to use the absence service, the following table has to be created:

create table camunda_absence (
    id bigint auto_increment primary key,
    user_id bigint not null,
    replacement_id bigint not null,
    from_date date not null,
    to_date date not null
);
camundaCore.absence.controller.loggedInUserOnly

type: boolean, required: no, default: true

The logged-in user can only request or modify their own absence (recommended).

Observers

There is an internal service and a controller to manage observers. Observers can be informed automatically with the mail service.

The controller provides the following methods to manage observers:

  • GET main/camundaCore/observer?userId=... userId is optional, the default is the logged-in user. Returns an Observer JSON object.
  • GET main/camundaCore/observer/list only available if loggedInUserOnly is set to false. Returns a list of Observer JSON objects.
  • POST main/camundaCore/observer creates or updates an observer, has to be sent as observer JSON object in the body. userId is optional, the default is the logged-in user.
  • DELETE main/camundaCore/observer?userId=... userId is optional, the default is the logged-in user.

Response codes:

  • 403 FORBIDDEN (<v2.0 406 NOT ACCEPTABLE): the user sending the request does not match the specified user id (can only happen if loggedInUserOnly is set to true)
  • 404 NOT FOUND: no observer found for specified userId
  • 401 UNAUTHORIZED (only v2.0+): the session expired
  • 201 CREATED: the observer was created (wasn't an update)
  • 200 OK

Observer JSON object:

{
    "id": ...
    "userId": 487
}

To be able to use the observer service, the following table has to be created:

create table camunda_observer (
    id bigint auto_increment primary key,
    user_id bigint not null
);
camundaCore.observer.enabled

type: boolean, required: no, default: true

If this property is set to true, then deleted users will be removed automatically from the observer list. Restart required.

camundaCore.observer.controller.loggedInUserOnly

type: boolean, required: no, default: true

The logged-in user can only request or modify their own observer status (recommended).

Mails

There is an internal mail service and a controller. Both accept a SendMailRequest object. The mail engine uses velocity templates, which have to be placed in the class path, e.g. CELUM_HOME/appserver/velocity (recommended).

Mail template with all variables:

#* @vtlvariable name="data" type="ch.brix.camundaCore.mail.MailData" *#
#* @vtlvariable name="additionalData" type="java.util.Map<java.lang.String, java.lang.Object>" *#
<div id="body" style="font-family: Arial, Helvetica, sans-serif;">
    Always available (all but the first property depend on the recipient), but maybe not set in CELUM:
    <ul>
        <li>${data.celum}: link to CELUM, guaranteed to end in /</li>
        <li>${data.userId}</li>
        <li>${data.username}</li>
        <li>${data.email}</li>
        <li>${data.firstName}</li>
        <li>${data.lastName}</li>
    </ul>
    Available if assetId is set for the request:
    <ul>
        <li>${data.assetId}: an asset link is created as follows <a href="${data.celum}main/opennodeview.do?assetId=${data.assetId}">${data.assetName}</a></li>
        <li>${data.assetName}</li>
    </ul>
</div>

The controller accepts POST requests to camundaCore/mail (note that there is no main) with a SendMailRequest object as the body and the response will be a SendMailResult object (JSON).

The SendMailRequest object has the following properties:

  • token (string): if this token doesn't match the configured one, the response code will be 401: UNAUTHORIZED.
  • subjectMessageKey (string): the message key for the subject of the mail
  • template (string): the mail of the template (without the _locale.vm)
  • locale (string): the language in which the mail should be sent (default is the CELUM default system locale)
  • recipients (array of integers): the user ids of the recipients (the users to which the mail should be sent)
  • includeObservers (boolean): if set to true, the mail will also be sent to the observers (default is false)
  • assetId (integer): the id of the asset
  • taskId (string)
  • taskName (string)

The SendMailResult object properties:

  • success (array of integers): the user ids to which a mail could be sent
  • failed (array of integers): the user ids for which sending the mail failed (only if not failed due to the three other reasons below)
  • ignored (array of integers): the user ids which were ignored because the user is deactivated
  • notFound (array of integers): the user ids which couldn't be found in CELUM
  • noMail (array of integers): the user ids for which the mail address is missing in CELUM
camundaCore.mail.from

type: string, required: yes, default: -

The email address which should be displayed in the from field.

camundaCore.mail.bcc

type: string, required: no, default: -

If the bcc is set, then this email address receives a copy of every mail that was sent with this mail service.

camundaCore.mail.ignoreDeactivatedUsers

type: boolean, required: no, default: true

If set to true, then deactivated users won't receive any mails and will be ignored.

Mail worker

The mail worker processes external tasks with the topic mail automatically.

  • The messageVariable has to contain the message id. It defines the subject and the template to be taken.
  • The recipients variable has to be a comma-separated string with the following possible values:
    • observers: send mail to all observers
    • <group key>: send mail to a group defined by camundaCore.groups.{key}.{recursive}
    • <camunda user/group id>: a user/group ID to which the message should be sent (everything starting with the user prefix will be treated as user id, same for groups)
    • <variable name>: the variable has to contain a comma-separated string of the three options above (if none of the above is true an element will be treated as variable)
  • Following values will be available in the template (additionalData)
    • variables: all the variables (Map<String, VariableValueDto>)
    • the asset variables (camundaCore.variables.assets) will be resolved and contain a list of assets accessed by the variable name
    • the node variables (camundaCore.variables.nodes) will be resolved and contain a list of nodes accessed by the variable name
    • the usersAndGroups variables (camundaCore.variables.usersOrGroups) will be resolved and contain a list of resolved user/group names accessed by the variable name
camundaCore.mail.worker.enabled

type: boolean, required: no, default: false, version: 2.0+

Enables the mail worker.

camundaCore.mail.worker.recipientsVariable

type: boolean, required: no, default: recipients, version: 2.0+

The variable which contains the recipients.

camundaCore.mail.worker.messageKey

type: boolean, required: no, default: message, version: 2.0+

The variable which contains the message to be sent.

camundaCore.mail.worker.{id}.subject

type: boolean, required: no, default: -, version: 2.0+

Defines the subject (message key) for a mail.

camundaCore.mail.worker.{id}.template

type: boolean, required: no, default: -, version: 2.0+

Defines the template (name) for a mail.

Update asset/node value worker

An asset worker updating assets/nodes from variables. Listens to the topic updateAssetOrNode. Value transformations:

  • Date field: Date
  • Checkbox: String "true" or "false"
  • Number, Double: String => toString()
  • Text (area): String
  • Node-Reference: String => comma-separated list of node ids
  • Localized text (area): String => JSON object with the locales as keys
  • Availability: String => "available", "unavailable" or "date-controlled" (additionally sets/reads Date variables dateTo and dateFrom i.e. their alias)
  • Asset name: String
  • Node name: String => JSON object with the locales as keys
camundaCore.updateAssetOrNode.worker.enabled

type: boolean, required: no, default: false, version: 2.0+

Enables the update asset or node value worker.

camundaCore.updateAssetOrNode.worker.assetVariable

type: string, required: no, default: assets, version: 2.0+

The variable for the assets. The variable can contain comma-separated asset ids and/or variable names of variables with asset ids.

camundaCore.updateAssetOrNode.worker.nodeVariable

type: string, required: no, default: nodes, version: 2.0+

The variable for the nodes. The variable can contain comma-separated node ids and/or variable names of variables with node ids.

camundaCore.updateAssetOrNode.worker.assetFieldVariable

type: string, required: no, default: assetFields, version: 2.0+

The variable for the asset fields. The variable can contain comma-separated variable names and/or information field ids. The information field ids and variable names have to be listed here camundaCore.assetField.{variableName}

camundaCore.updateAssetOrNode.worker.nodeFieldVariable

type: string, required: no, default: nodeFields, version: 2.0+

The variable for the node fields. The variable can contain comma-separated variable names and/or information field ids. The information field ids and variable names have to be listed here camundaCore.nodeField.{variableName}

camundaCore.updateAssetOrNode.worker.addNodesToAssetFieldVariable

type: semicolon-separated list of {field}:{comma-separated list of values}, required: no, default: addNodesToAssetField, version: 2.0+

The variable for the nodes to add to node-referencing information fields on assets. The field can be an alias or a node information field id. The values can be aliases or node ids. E.g. channels:youtube,vimeo;copyright:protected

camundaCore.updateAssetOrNode.worker.addNodesToNodeFieldVariable

type: semicolon-separated list of {field}:{comma-separated list of values}, required: no, default: addNodesToNodeField, version: 2.0+

The variable for the nodes to add to node-referencing information fields on nodes.

camundaCore.updateAssetOrNode.worker.removeNodesFromAssetFieldVariable

type: semicolon-separated list of {field}:{comma-separated list of values}, required: no, default: removeNodesFromAssetField, version: 2.0+

The variable for the nodes to remove from node-referencing information fields on assets.

camundaCore.updateAssetOrNode.worker.removeNodesFromNodeFieldVariable

type: semicolon-separated list of {field}:{comma-separated list of values}, required: no, default: removeNodesFromNodeField, version: 2.0+

The variable for the nodes to remove from node-referencing information fields on nodes.

Get asset/node value worker

An asset worker updating variables from assets/nodes. Listens to the topic getAssetOrNode. See update asset/node values worker.

camundaCore.getAssetOrNode.worker.enabled

type: boolean, required: no, default: false, version: 2.0+

Enables the get asset or node value worker.

camundaCore.getAssetOrNode.worker.assetVariable

type: string, required: no, default: assets, version: 2.0+

The variable for the assets. The variable can contain comma-separated asset ids and/or variable names of variables with asset ids.

camundaCore.getAssetOrNode.worker.nodeVariable

type: string, required: no, default: nodes, version: 2.0+

The variable for the nodes. The variable can contain comma-separated node ids and/or variable names of variables with node ids.

camundaCore.getAssetOrNode.worker.assetFieldVariable

type: string, required: no, default: assetFields, version: 2.0+

The variable for the asset fields. The variable can contain comma-separated variable names and/or information field ids. The information field ids and variable names have to be listed here camundaCore.assetField.{variableName}

camundaCore.getAssetOrNode.worker.nodeFieldVariable

type: string, required: no, default: nodeFields, version: 2.0+

The variable for the node fields. The variable can contain comma-separated variable names and/or information field ids. The information field ids and variable names have to be listed here camundaCore.nodeField.{variableName}

Workflow

camundaCore.process.historyDaysToLive

type: integer, required: no, default: 30, version: 2.0+

The number of days until a historic task gets cleaned up. 0 for no cleanup.

camundaCore.process.adminUser

type: integer (user id), required: no, default: api user, version 2.0+

The user with which the workflows modify the metadata.

camundaCore.process.tempNode

type: integer (node id), required: for upload, default: -

A node id in which temporary assets are created when uploaded in the workflow.

camundaCore.process.tempFolder

type: string (path), required: for upload, default: -

A folder in which temporary files are shortly saved for the upload (don't use CELUM's temp folder).

camundaCore.task.{processDefinitionKey}.{taskDefinitionKey}.name

type: string (message key), required: no, default: -

Specify a (multilingual) title for a task.

camundaCore.group.{key}.{recursive}

type: integer (group id), required: no, default: -, version: 2.0+

Defines a group that can be resolved from a variable. E.g. camundaCore.groups.approvers.true=345 would define group 345 as the approvers group (recursive). Now if the mail worker sees "approvers" in the recipients it will send a message to all users in this group (recursive).

camundaCore.assetType.{alias}

type: integer (asset type id), required: no, default: -, version: 2.0+

Defines an alias for an asset type.

camundaCore.nodeType.{alias}

type: integer (node type id), required: no, default: -, version: 2.0+

Defines an alias for a node type.

camundaCore.assetField.{alias/variableName}

type: information field id, required: no, default: -, version: 2.0+

Defines an alias for an asset information field. Special values for fields without ID:

  • assetName
  • availability (available, unavailable, date-controlled)
  • dateFrom (for date-controlled availability)
  • dateTo (for date-controlled availability)
  • assetType
camundaCore.nodeField.{alias/variableName}

type: information field id, required: no, default: -, version: 2.0+

Defines an alias for a node information field. Special values for fields without ID:

  • nodeName
  • nodeType
camundaCore.assetField.{alias/variableName}.{valueAlias}

type: integer (node id or dropdown id), required: no, default: -, version 2.0+

Define aliases for values for the given asset field.

camundaCore.nodeField.{alias/variableName}.{valueAlias}

type: integer (node id or dropdown id), required: no, default: -, version 2.0+

Define aliases for values for the given node field.

camundaCore.variables.assets

type: comma-separated list of variable names, required: no, default: -, version: 2.0+

The variables containing a comma-separated list of asset ids.

camundaCore.variables.nodes

type: comma-separated list of variable names, required: no, default: -, version: 2.0+

The variables containing a comma-separated list of node ids.

camundaCore.variables.usersOrGroups

type: comma-separated list of variable names, required: no, default: -, version: 2.0+

The variables containing a comma-separated list of Camunda user and/or group ids. It is also possible to have group keys in there.

Start workflow

  • The process definition key is stored in the variable "processDefinitionKey".
  • The assets are stored in the variable "assets".
  • The nodes are stored in the variable "nodes".
  • The initiator is stored in the variable "initiator".
  • The old asset values to reverse them if the workflow is cancelled in the variable "oldAssetValues".
  • The old node values to reverse them if the workflow is cancelled in the variable "oldNodeValues".
camundaCore.start.{processDefinitionKey}.assetScope

type: string, required: no, default: -, version: 2.0+

A search expression which defines whether a process can be started or not. Only if there is an assetScope workflows can be started on assets.

camundaCore.start.{processDefinitionKey}.nodeScope

type: string, required: no, default: -, version: 2.0+

A scope for nodes on which the workflow can be started. Only if there is a nodeScope workflows can be started on nodes. The following parameters are supported:

  • nodes a list of node ids
  • nodeTypes a list of node type ids
  • recursive (default true), if recursive is false and node types is specified then only the root nodes are found
  • includeParent (default false), includes the specified nodes themselves also when recursive is true
  • excludeNodes (always recursive and the nodes specified here are included), exclude nodes if it is not possible to get the desired result otherwise, not recommended because it is expensive
camundaCore.start.{processDefinitionKey}.minAssets

type: integer, required: no, default: 0, version: 2.0+

The minimum number of assets that have to be selected.

camundaCore.start.{processDefinitionKey}.maxAssets

type: integer, required: no, default: 0, version: 2.0+

The maximum number of assets that can be selected (-1 means no upper bound).

camundaCore.start.{processDefinitionKey}.minNodes

type: integer, required: no, default: 0, version: 2.0+

The minimum number of nodes that have to be selected.

camundaCore.start.{processDefinitionKey}.maxNodes

type: integer, required: no, default: 0, version: 2.0+

The maximum number of nodes that can be selected (-1 means no upper bound).

camundaCore.start.{processDefinitionKey}.orMode

type: boolean, required: no, default: false, version: 2.0+

If this is set to true then only the min/max assets condition or the min/max node condition has to apply and not both. This also means that the process can only be started with assets or nodes but not both.

camundaCore.start.{processDefinitionKey}.name

type: string, required: no, default: -, version: 2.0+

The human-readable name of the process (message key).

camundaCore.start.{processDefinitionKey}.startAllowedUserGroupIds

type: comma-separated list of user group ids, required: no, default: -, version: 2.0+

Users in the specified groups (recursive) are allowed to start the process.

camundaCore.start.{processDefinitionKey}.openTasklist

type: boolean, required: no, default: false, version: 2.0+

Whether the tasklist should be opened or not after the process was started.

camundaCore.start.{processDefinitionKey}.showRelatedTasks

type: boolean, required: no, default: false, version: 2.0+

Whether assignees can see tasks with the same task definition key in the same process instance or not.

camundaCore.start.{processDefinitionKey}.initiatorView

type: boolean, required: no, default: false, version: 2.0+

Whether the initiator can see all the tasks in the processes he started or not.

camundaCore.start.{processDefinitionKey}.initiatorEdit

type: boolean, required: no, default: false, version: 2.0+

Whether the initiator can edit all the tasks in the processes he started or not.

camundaCore.start.{processDefinitionKey}.setAssetField.{field}

type: string, required: no, default: false, version: 2.0+

The asset fields to be set. {field} can be an alias for a checkbox or a dropdown or the information field id. The value can be an alias for a dropdown value, a dropdown item id or true/false. Those fields should be used to prevent the start of the same workflow with the same asset.

camundaCore.start.{processDefinitionKey}.setNodeField.{field}

type: string, required: no, default: false, version: 2.0+

The asset fields to be set. {field} can be an alias for a checkbox or a dropdown or the information field id. The value can be an alias for a dropdown value, a dropdown item id or true/false. Those fields should be used to prevent the start of the same workflow with the same node.

Forms

camundaCore.forms.{task}.{key}

type: string, required: no, default: false, version: 2.0+

Defines a form for a task definition key {task}. The {key} is the form entry key which should be returned as variable with the value.

A form entry consists of the following semi-colon separated parts:

  1. type: assetName, nodeName, assetType, nodeType, availability, info_{id}, file, text, textarea, checkbox, tab (dummy property)
  2. name: message key
  3. enabled: true/false
  4. required: true/false
  5. position: int
  6. value: Object, depends
  7. placeholder: message key
  8. variable name
  9. options: JSON Options

Options:

  • [users: array of Users]
  • [values: array of ListValue]
  • max: int
  • min: int
  • locales: array of locales
  • format: string
  • restriction: string (e.g. "future" for dates)
  • [dateFrom: date]
  • [dateTo: date]
  • mandatoryWith: array of string (keys of other fields)
  • tab: string (key of the tab)
  • tooltip: message key
  • passwordProtected: true/false (enough to list for one field, so the whole form gets password protected)
  • abort: array of string (initiator, assignee, candidates, editors, viewers)

Deployments

Dev Deployments

  1. Stop the CELUM app server service
  2. Stop the Camunda service
  3. Update the Camunda *.jar-File
  4. Update the Camunda connector for CELUM (either core or customized extension)
  5. Delete the Camunda tables in the Camunda database
  6. Start the Camunda service
  7. Start the CELUM app server service
  8. Run the "Camunda > User and Group Sync Sanitize" system task in CELUM

Prod Deployments

  1. Stop the CELUM app server service
  2. Stop the Camunda service
  3. Update the Camunda *.jar-File
  4. Start the Camunda service
  5. Migrate the running process instances if required (or skip this step and let them complete using the old process definition)
  6. Update the Camunda connector for CELUM (either core or customized extension)
  7. Start the CELUM app server service
  8. If the process instances weren't migrated, wait until all old process instances have finished and then do a clean-up of the stuff in CELUM that was only needed for the previous process definition and is removable now (e.g. information fields that aren't needed anymore)

Compatibility Matrix

Camunda Core CELUM
1.0.0 5.13.4 (tested with 6.4)
2.0.0 6.4+

Release Notes

1.0.0

Released 2020-03-09

Initial version