How To Fix /SAPAPO/PPM_MAINTAIN119 - Successor relationship has errors (recursive activity sequence)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/PPM_MAINTAIN -

• Message number: 119

• Message text: Successor relationship has errors (recursive activity sequence)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PPM_MAINTAIN119 - Successor relationship has errors (recursive activity sequence) ?

  The SAP error message /SAPAPO/PPM_MAINTAIN119 indicates that there is an issue with the successor relationship in a project or activity sequence within the SAP Advanced Planning and Optimization (APO) module. Specifically, it points to a recursive activity sequence, which means that there is a circular dependency among activities. This can occur when an activity is set to follow itself directly or indirectly through other activities, creating a loop that cannot be resolved.
  Cause:
  
  Circular Dependency: The most common cause of this error is that one or more activities are set up in such a way that they reference each other in a circular manner. For example, Activity A is a predecessor of Activity B, and Activity B is a predecessor of Activity A.
  Incorrect Configuration: There may be incorrect configurations in the project or activity relationships that lead to this recursive relationship.
  Data Entry Errors: Manual data entry errors when defining the relationships between activities can also lead to this issue.
  
  Solution:
  
  Review Activity Relationships: Check the relationships between the activities in the project. Look for any circular references where an activity is both a predecessor and a successor of another activity.
  Correct the Relationships: Modify the activity relationships to eliminate any circular dependencies. Ensure that each activity has a clear and linear sequence of predecessors and successors.
  Use the PPM (Project and Portfolio Management) Tools: Utilize the tools available in SAP PPM to visualize and manage the activity relationships. This can help identify and correct any problematic relationships.
  Validation: After making changes, validate the activity sequence again to ensure that the error has been resolved.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error message.
  Documentation: Refer to the SAP documentation for Project and Portfolio Management (PPM) for best practices on setting up activity relationships.
  Testing: After resolving the issue, conduct thorough testing to ensure that the project planning and scheduling functions as expected without any further errors.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP expert or support team for further assistance.