How To Fix CNV_PE_GEN122 - Mapping from data model to worklist could not be generated

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_GEN - Messages for object generation

• Message number: 122

• Message text: Mapping from data model to worklist could not be generated

What causes this issue?

Trying to generate the worklist mapping within interface mapping
IFMAP_WL1_10_TO_50 failed. Possible reasons could be:
A required data model parameter (= table field) has no corresponding
parameter in the worklist interface
A required data model parameter (=table field) has no link to an
existing worklist interface parameter
The generated DDIC objects of the data model are not up-to-date
The generated DDIC objects of the worklist are not up-to-date
A subsequent (after an already successful generation) change of the data
model
Adding or removing a data model table
Adding or removing an extension table to the data model
Adding or removing a field within an extension table of the data model

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Execute the following activities:
Generation of the data model DDIC objects (in case the data model has
subsequently changed)
Adjust worklist interface
Generation of the worklist DDIC objects
Generation of the write function for the worklist of the area (technical
identifier = WL150)
After the successful re-execution of the above activities, re-execute
the current activity.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE_GEN122 - Mapping from data model to worklist could not be generated ?

  The SAP error message CNV_PE_GEN122 indicates that there is an issue with generating the mapping from the data model to the worklist in the context of a data migration or conversion project, typically using the SAP S/4HANA Migration Cockpit or similar tools.
  Causes:
  
  Missing or Incomplete Configuration: The data model may not be fully configured, or there may be missing entries in the mapping tables.
  Incompatible Data Types: There could be a mismatch in data types between the source and target systems, which prevents the mapping from being generated.
  Errors in the Data Model: The data model itself may contain errors or inconsistencies that need to be resolved.
  Authorization Issues: The user executing the mapping may not have the necessary authorizations to access certain objects or data.
  Technical Issues: There may be underlying technical issues, such as database connectivity problems or issues with the SAP system itself.
  
  Solutions:
  
  Check Configuration: Review the configuration settings for the data model and ensure that all necessary entries are present and correctly defined.
  Validate Data Types: Ensure that the data types in the source and target systems are compatible. If there are discrepancies, adjust the data types accordingly.
  Review Data Model: Examine the data model for any errors or inconsistencies. Correct any issues found in the model.
  Check Authorizations: Verify that the user has the appropriate authorizations to perform the mapping. If not, adjust the user roles or permissions.
  System Logs: Check the system logs for any additional error messages or warnings that could provide more context about the issue.
  Re-run the Mapping Generation: After addressing the above points, attempt to re-run the mapping generation process to see if the issue persists.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the CNV_PE_GEN122 error for any specific patches or updates that may address the issue.
  Documentation: Review the official SAP documentation for the migration tool you are using, as it may provide additional insights or troubleshooting steps.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed and resolved by other users.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.