How To Fix MM_PUR_CNTRL_CONTR091 - Entity key information cannot be derived

SAP Error Message - Details

• Message type: E = Error

• Message class: MM_PUR_CNTRL_CONTR - Messages in Central Purchase Contract

• Message number: 091

• Message text: Entity key information cannot be derived

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 MM_PUR_CNTRL_CONTR091 - Entity key information cannot be derived ?

  The SAP error message MM_PUR_CNTRL_CONTR091 ("Entity key information cannot be derived") typically occurs in the context of purchasing and materials management when the system is unable to determine the necessary key information for a specific entity, such as a purchase order, contract, or material.
  Causes:
  
  Missing Master Data: The required master data (like vendor, material, or purchasing info record) may not be maintained or is incomplete.
  Incorrect Configuration: There may be issues with the configuration settings in the purchasing module or related areas.
  Data Inconsistencies: There could be inconsistencies in the data, such as mismatched keys or references that the system cannot resolve.
  Authorization Issues: The user may not have the necessary authorizations to access the required data.
  System Bugs: Occasionally, this error can be caused by bugs in the SAP system or specific patches that need to be applied.
  
  Solutions:
  
  Check Master Data: Ensure that all relevant master data (vendors, materials, purchasing info records) is correctly maintained and complete.
  Review Configuration: Verify the configuration settings in the purchasing module to ensure they are set up correctly.
  Data Consistency Check: Run consistency checks on the relevant data to identify and resolve any discrepancies.
  User Authorizations: Check the user’s authorizations to ensure they have the necessary permissions to access the required data.
  SAP Notes and Patches: Look for any relevant SAP Notes that address this specific error message. Applying the latest patches or updates may resolve the issue.
  Debugging: If you have access to technical resources, debugging the process where the error occurs can provide insights into what is causing the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as ME21N (Create Purchase Order), ME22N (Change Purchase Order), and ME23N (Display Purchase Order) to check the data involved.
  SAP Community: Engage with the SAP Community or forums where similar issues may have been discussed, and solutions shared.
  Documentation: Refer to SAP documentation for detailed information on purchasing processes and error handling.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more in-depth analysis and assistance.