How To Fix /SAPAPO/PPM_MAINTAIN559 - Activity &1 &2 has more than one successor with cover flag

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PPM_MAINTAIN -

• Message number: 559

• Message text: Activity &1 &2 has more than one successor with cover flag

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PPM_MAINTAIN559 - Activity &1 &2 has more than one successor with cover flag ?

  The SAP error message /SAPAPO/PPM_MAINTAIN559 indicates that there is an issue with the activity in the Project Planning and Management (PPM) module of SAP Advanced Planning and Optimization (APO). Specifically, the error states that the activity you are trying to maintain has more than one successor with the cover flag set, which is not allowed.
  Cause:
  
  Multiple Successors: The activity you are trying to maintain has multiple successor activities that are marked with the cover flag. In SAP, the cover flag is used to indicate that an activity can cover the demand of its predecessor.
  Data Integrity: The system enforces rules to maintain data integrity, and having multiple successors with the cover flag can lead to ambiguity in planning and scheduling.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Successors: Check the activity in question and identify all its successor activities. You can do this by navigating to the activity details in the PPM module.
  
  
  Modify Cover Flags: Determine which of the successor activities should retain the cover flag. You may need to:
  
  Remove the cover flag from the unnecessary successors.
  Ensure that only one successor has the cover flag set.
  
  
  
  Adjust Activity Relationships: If necessary, you may need to adjust the relationships between activities to ensure that the planning logic is correct and that only one successor is designated to cover the predecessor.
  
  
  Save Changes: After making the necessary adjustments, save your changes and try to maintain the activity again.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for PPM and APO for more detailed information on activity management and the use of cover flags.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/PPM for accessing the PPM module.
  SAP Notes: Check for any SAP Notes related to this error message for additional guidance or patches that may address known issues.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.