How To Fix WL626 - Requested start & & greater than inherited start time & &

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 626

• Message text: Requested start & & greater than inherited start time & &

What causes this issue?

*** Error message is not used ***

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?

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 WL626 - Requested start & & greater than inherited start time & & ?

  The SAP error message WL626 ("Requested start & & greater than inherited start time & &") typically occurs in the context of SAP's Production Planning (PP) or Advanced Planning and Optimization (APO) modules. This error indicates that there is a conflict between the requested start time of a process or operation and the inherited start time from a predecessor operation or task.
  Cause:
  The error arises when:
  
  A task or operation is scheduled to start at a time that is later than the time inherited from a preceding task or operation. 
  This can happen due to incorrect scheduling parameters, dependencies not being respected, or changes in the production plan that have not been properly updated in the system.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Scheduling Parameters: Review the scheduling parameters for the operation in question. Ensure that the requested start time is logically consistent with the end time of any predecessor operations.
  
  
  Review Dependencies: Look at the dependencies between operations. Ensure that the operations are sequenced correctly and that the start times respect the constraints imposed by these dependencies.
  
  
  Adjust Start Times: If necessary, adjust the requested start time of the operation to be earlier than or equal to the inherited start time. This may involve rescheduling other operations or tasks.
  
  
  Recalculate Scheduling: If changes have been made to the production plan, recalculate the scheduling to ensure that all operations are aligned correctly. This can often be done through the planning tools available in SAP.
  
  
  Check for Conflicts: Look for any conflicts in the production schedule that may be causing the issue. This could include resource constraints, overlapping operations, or other scheduling conflicts.
  
  
  Consult Documentation: If the issue persists, consult SAP documentation or support resources for more specific guidance related to your version of SAP and the specific context in which the error occurs.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like CO02 (Change Production Order) or MD04 (Stock/Requirements List) to investigate the scheduling of operations.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Forums: Consider visiting SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the root cause of the WL626 error and implement a solution to resolve it.