How To Fix FMBLEXT020 - Selected predecessor not permitted (select a different one)

SAP Error Message - Details

• Message type: E = Error

• Message class: FMBLEXT - Message class for Budgetary Ledger Extensions

• Message number: 020

• Message text: Selected predecessor not permitted (select a different one)

What causes this issue?

The predecessors you selected are not permitted for the chosen combined
document, since this choice does not make sense from a business point of
view.
For example, you are customizing a precommitment and you have selected a
predecessor chain that would create a reservation and a precommitment.
This leads to an error, since a precommitment cannot have another
precommitment as its predecessor.

System Response

Processing stops.

How to fix this error?

Make a different selection of predecessor documents.

Procedure for System Administrators

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message FMBLEXT020 - Selected predecessor not permitted (select a different one) ?

  The SAP error message FMBLEXT020 ("Selected predecessor not permitted (select a different one)") typically occurs in the context of financial management, particularly when dealing with budget management or planning scenarios. This error indicates that the predecessor item you are trying to select is not allowed due to certain restrictions or conditions set in the system.
  Causes:
  
  Predecessor Restrictions: The predecessor you are trying to select may not meet the criteria defined in the system. This could be due to settings in the budget structure or planning hierarchy.
  Status of the Predecessor: The predecessor might be in a status that does not allow it to be selected (e.g., it could be locked, completed, or in a different phase).
  Configuration Issues: There may be configuration settings in the system that restrict the selection of certain predecessors based on specific criteria.
  Authorization Issues: The user may not have the necessary authorizations to select the specified predecessor.
  
  Solutions:
  
  Check Predecessor Validity: Verify that the predecessor you are trying to select is valid and meets all the necessary criteria. Ensure it is in the correct status and not locked.
  Review Configuration Settings: Consult with your SAP configuration team to review the settings related to budget management or planning. They may need to adjust the configuration to allow the selection of the desired predecessor.
  Change Predecessor: If the selected predecessor is not permitted, try selecting a different predecessor that meets the criteria.
  Authorization Check: Ensure that you have the necessary authorizations to select the predecessor. If not, contact your system administrator to obtain the required permissions.
  Consult Documentation: Refer to SAP documentation or help resources for specific details regarding the error message and its context.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may be using transaction codes related to budget management (e.g., FMBB, FMAVC, etc.).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Support: If the issue persists, consider reaching out to SAP support or your internal IT support team for further assistance.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.