How To Fix WA643 - Type linkages to task & cannot be deleted from table &

SAP Error Message - Details

• Message type: E = Error

• Message class: WA - Messages from Workflow Event Manager

• Message number: 643

• Message text: Type linkages to task & cannot be deleted from table &

What causes this issue?

The type linkages to task &v1& cannot be deleted from table &v2&.

System Response

The action was terminated, the linkages are not deleted.

How to fix this error?

INCLUDE NA_WF-ADMINISTRATOR OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WA643 - Type linkages to task & cannot be deleted from table & ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WA643 Type linkages to task & cannot be deleted from table &
  
  Cause:
  This error occurs when you try to delete a type linkage that is currently assigned or linked to a task in SAP Workflow. The system prevents deletion because the linkage is still in use and removing it would break the workflow configuration integrity.
  
  Type linkage refers to the assignment of a container element or data type to a workflow task.
  The linkage is stored in a specific table (indicated by the second placeholder & in the message).
  If the linkage is still referenced by a task, SAP does not allow deletion to avoid inconsistencies.
  
  
  Explanation:
  
  In SAP Workflow, tasks have container elements that are linked to data types or other objects.
  These linkages define how data flows into and out of the task.
  Deleting a linkage that is still assigned to a task would cause the task to lose its data references, leading to runtime errors.
  Therefore, SAP enforces this check and throws the WA643 error.
  
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Identify the linkage and task:
  
  From the error message, note the task and the table name.
  Use transaction PFTC (Workflow Task Maintenance) to check the task container elements and their linkages.
  
  
  
  Remove or change the linkage in the task:
  
  Open the task in PFTC.
  Navigate to the container tab.
  Find the container element linked to the type you want to delete.
  Remove or modify the linkage so that the type is no longer assigned to the task.
  
  
  
  Delete the linkage:
  
  After unlinking the type from the task, you can now delete the type linkage from the table or configuration.
  
  
  
  Check for other references:
  
  Sometimes, the linkage might be used in other tasks or workflows.
  Use SAP tools or queries to check for all references before deletion.
  
  
  
  Transport and test:
  
  If changes are made in a development system, transport them to quality and production.
  Test the workflow to ensure no runtime errors occur.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  PFTC - Workflow Task Maintenance
  SWDD - Workflow Builder (to check workflow definitions)
  SE16 or SE16N - To view tables related to workflow container elements and linkages (e.g., TBTCP, TBTCS)
  
  
  
  Tables:
  
  The exact table name is shown in the error message (second &).
  Common workflow-related tables include:
  
  TBTCP - Task container elements
  TBTCS - Task container element assignments
  TBTCT - Task container element types
  
  
  
  
  
  SAP Notes:
  
  Check SAP Notes related to workflow container elements and task linkages for any known issues or patches.
  
  
  
  Best Practices:
  
  Always check dependencies before deleting workflow objects.
  Use transport requests to move workflow changes.
  Backup workflow definitions before making structural changes.
  
  
  
  
  If you provide the exact task name and table name from the error message, I can help you with more specific instructions.