Message type: E = Error
Message class:  CNV_PE - General messages for posting engine 
Message number: 070
Message text: Group ID settings must not be changed, as worklist item &1 has status &2
You want to update the group ID information.
This is possible as long as no worklist item (which has execution rule
&V3& assigned on &V4& side) is processed. Otherwise changing the group
ID information might lead to a different grouping result of individual
worklist items. This would <ZK>invalidate</> already processed worklist
items of execution rule &V3&.
The system found that worklist item &V1& already has status &V2&.
Ignore this message in case the status of the worklist item satisfies
your needs.
Alternatively undo worklist item &V1& and re-execute this activity.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_PE070 indicates that there is an issue with changing the Group ID settings in a worklist item. This error typically arises in the context of data migration or conversion processes, particularly when using SAP's tools for data migration (like the SAP S/4HANA Migration Cockpit or other data conversion tools).
Cause: The error message "Group ID settings must not be changed" suggests that the system is preventing changes to the Group ID settings because there is at least one worklist item that has a status that does not allow for such changes. The specific worklist item is identified by the placeholder &1, and its current status is indicated by &2. Common reasons for this error include: The worklist item is in a status that requires it to remain unchanged (e.g., "In Process", "Completed", "Locked"). There may be dependencies or relationships with other worklist items that prevent changes to the Group ID
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