How To Fix /SAPAPO/RSV509 - Reservation &4: No entry in ORDKEY, method changed from &1 to &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/RSV -

• Message number: 509

• Message text: Reservation &4: No entry in ORDKEY, method changed from &1 to &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/RSV509 - Reservation &4: No entry in ORDKEY, method changed from &1 to &2 ?

  The SAP error message /SAPAPO/RSV509 indicates that there is an issue with a reservation in the Advanced Planning and Optimization (APO) module. Specifically, the message states that there is "No entry in ORDKEY," and it also mentions that the method has changed from one value to another.
  Cause:
  
  Missing Entry in ORDKEY: The error typically arises when the system is trying to access a reservation that does not have a corresponding entry in the order key (ORDKEY) table. This could happen if the order was deleted or if there was a data inconsistency.
  Method Change: The message indicates that the method for processing the reservation has changed, which could be due to configuration changes or updates in the system that affect how reservations are handled.
  
  Solution:
  
  Check the Reservation: Verify the reservation in question to ensure that it exists and is correctly configured. You can do this by navigating to the relevant transaction in SAP APO and checking the details of the reservation.
  Check ORDKEY Table: Investigate the ORDKEY table to see if there is an entry for the order associated with the reservation. If there is no entry, you may need to recreate the order or the reservation.
  Review Configuration: If the method has changed, review any recent changes in configuration or updates that may have affected how reservations are processed. Ensure that the settings align with your business processes.
  Data Consistency Check: Run a data consistency check in the APO system to identify any inconsistencies that may be causing the issue. This can help in identifying orphaned records or other data integrity issues.
  Consult Documentation: Refer to SAP documentation or notes related to this error message for any specific guidance or patches that may address the issue.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like /SAPAPO/RES01 to view reservations or /SAPAPO/ORD01 to check orders.
  SAP Notes: Check SAP Notes for any known issues or fixes related to this error message. You can search for the error message number or keywords in the SAP Support Portal.
  Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance, providing them with the error details and any steps you have already taken.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the /SAPAPO/RSV509 error message.