3655539 - Imported BPMN Process gets error "Invariant Violation: could not find descriptor for type custom" in SAP Signavio Process Governance

A BPMN file that has been imported into SAP Signavio Process Governance reports the following error when examining Tasks or Gateways that use fields.

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Invariant Violation: Could not find descriptor for type custom

The process contains an External Activity task, for the activity Sync to SAP Cloud ALM Activity.

Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.

The Sync to SAP Cloud ALM activity uses custom type objects from SAP Cloud ALM, where these are not imported into Process Governance.

It is currently not recommended to export and import a process that uses the Sync to SAP Cloud ALM activity.

Instead, the process (workflow) should be created by activating the SAP Cloud ALM Sync in the Process Manager workspace.

Enabling Automatic Syncing to SAP Cloud ALM | SAP Help Portal

External Activities - Sync to SAP Cloud ALM | SAP Help Portal

KBA , BPI-SIG-CON-CLM , SAP Signavio Process Manager CALM , Problem

SAP Signavio Process Governance all versions ; SAP Signavio Process Manager 3.0