How To Fix PPEAPO_ECN004 - Change number &1 is not a valid successor of &4 for &2 &3

PPEAPO_ECN004 - Overview

• Message type: E = Error

• Message class: PPEAPO_ECN - Message Class for BAdI Class CL_PPEAPO_ECN

• Message number: 004

• Message text: Change number &1 is not a valid successor of &4 for &2 &3

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PPEAPO_ECN004 - Change number &1 is not a valid successor of &4 for &2 &3 ?

  The SAP error message PPEAPO_ECN004 indicates that there is an issue with the change number in the context of Engineering Change Management (ECM) within the SAP system. Specifically, the error states that the change number you are trying to use is not a valid successor for the specified object (like a material or a document).
  
  Cause:
  This error typically arises due to one of the following reasons:
  
  
  Invalid Change Number Sequence: The change number you are trying to assign does not follow the correct sequence or hierarchy of change numbers. In SAP, change numbers are often linked in a predecessor-successor relationship, and the system checks this relationship when you attempt to make changes.
  
  
  Change Number Status: The change number you are trying to use may not be in a valid status for the operation you are attempting. For example, it might be inactive or not released.
  
  
  
  Configuration Issues: There may be configuration settings in the