How To Fix /SAPAPO/CDPSOPT235 - There is no successor for activity &2 in locked activity chain &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CDPSOPT -

• Message number: 235

• Message text: There is no successor for activity &2 in locked activity chain &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/CDPSOPT235 - There is no successor for activity &2 in locked activity chain &1 ?

  The SAP error message /SAPAPO/CDPSOPT235 indicates that there is an issue with the scheduling of activities in a locked activity chain. Specifically, it states that there is no successor for a specified activity in the locked activity chain. This can occur in the context of Advanced Planning and Optimization (APO) when dealing with production planning and scheduling.
  Cause:
  
  Missing Successor Activity: The primary cause of this error is that the specified activity (denoted by &2) does not have a defined successor in the activity chain (denoted by &1). This could be due to incorrect configuration or data entry.
  Locked Activity Chain: The activity chain is locked, which means that no changes can be made to it while it is in this state. This can prevent the system from finding or assigning a successor.
  Data Integrity Issues: There may be issues with the data integrity in the planning book or the master data that defines the activities and their relationships.
  
  Solution:
  
  Check Activity Chain Configuration: Review the configuration of the activity chain to ensure that all activities have defined successors. You may need to add or correct the successor for the specified activity.
  Unlock the Activity Chain: If possible, unlock the activity chain to allow for modifications. This may involve changing the status of the chain or working with your system administrator to unlock it.
  Review Master Data: Ensure that the master data related to the activities is complete and accurate. This includes checking the definitions of the activities and their relationships.
  Recreate the Activity Chain: If the issue persists, consider recreating the activity chain from scratch to ensure that all relationships are correctly defined.
  Consult Documentation: Refer to SAP documentation or help resources for more detailed guidance on managing activity chains and resolving related errors.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as /SAPAPO/CDPS to access the relevant planning and scheduling functions.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Support: If the issue cannot be resolved internally, consider reaching out to SAP support for assistance, providing them with the error message details and any relevant context.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.