How To Fix /ISDFPS/FDP889 - Assignment source & is itself an op./ex.; cannot make assignment to O/E

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/FDP -

• Message number: 889

• Message text: Assignment source & is itself an op./ex.; cannot make assignment to O/E

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 /ISDFPS/FDP889 - Assignment source & is itself an op./ex.; cannot make assignment to O/E ?

  The SAP error message /ISDFPS/FDP889 Assignment source & is itself an op./ex.; cannot make assignment to O/E typically occurs in the context of SAP's Flexible Planning (FDP) or similar modules where you are trying to assign a source (like a production order or an operation) to an operational/execution plan (O/E) but the source is already defined as an operation or execution itself.
  
  Cause:
  
  Self-Referencing Assignment: The error indicates that you are attempting to assign a source that is already defined as an operation or execution plan. This creates a circular reference, which is not allowed in the system.
  Incorrect Configuration: There may be a misconfiguration in the planning setup or the way the operations and execution plans are defined.
  Data Integrity Issues: There could be issues with the data integrity in the planning hierarchy, leading to conflicts in assignments.
  
  
  Solution:
  
  Check the Assignment: Review the assignment you are trying to make. Ensure that the source you