How To Fix PRF_CNTRL_MSG091 - Header Key is initial

PRF_CNTRL_MSG091 - Overview

• Message type: E = Error

• Message class: PRF_CNTRL_MSG - Message Class for control messages of PRF

• Message number: 091

• Message text: Header Key is initial

Self-Explanatory Message

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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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PRF_CNTRL_MSG091 - Details

• The SAP error message PRF_CNTRL_MSG091 with the description "Header Key is initial" typically occurs in the context of SAP's Project System (PS) or related modules when there is an attempt to process a document or transaction that requires a header key, but the key is not provided or is empty.
  
  Cause:
  
  Missing Header Information: The most common cause of this error is that the system is trying to process a transaction (like creating a project, order, or other document) that requires a header key, but the key has not been populated.
  Incorrect Configuration: There may be configuration issues in the project or order management settings that lead to the header key not being generated or recognized.
  Data Entry Errors: Users may have inadvertently skipped entering required fields or made mistakes during data entry.
  
  
  Solution:
  
  Check Input Fields: Ensure that all required fields in the transaction are filled out correctly. Specifically, check for the header key field