How To Fix /SAPAPO/OM_ERROR2191 - A subrow could not be connected to a header row

/SAPAPO/OM_ERROR2191 - Overview

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR2 -

• Message number: 191

• Message text: A subrow could not be connected to a header row

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/OM_ERROR2191 - A subrow could not be connected to a header row ?

  The SAP error message /SAPAPO/OM_ERROR2191 indicates that there is an issue with the connection between a subrow and its corresponding header row in the context of SAP Advanced Planning and Optimization (APO). This error typically arises during planning or data processing activities where the system expects a hierarchical relationship between data entries, but it cannot establish that relationship due to missing or incorrect data.
  Causes:
  
  Missing Header Row: The subrow may be trying to reference a header row that does not exist in the system.
  Incorrect Data Structure: The data structure may not be correctly defined, leading to mismatches between header and subrow entries.
  Data Integrity Issues: There may be inconsistencies or corruption in the data that prevent the system from linking the subrow to the header row.
  
  Configuration Issues: Incorrect configuration settings in the APO system can lead to this error, especially if the planning area or data model is not set up properly.
  
  Solutions:
  
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