How To Fix CY502 - Format key & already processed: Lock not possible

CY502 - Overview

• Message type: E = Error

• Message class: CY - Capacity Requirements Planning

• Message number: 502

• Message text: Format key & already processed: Lock not possible

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 CY502 - Format key & already processed: Lock not possible ?

  The SAP error message CY502 ("Format key & already processed: Lock not possible") typically occurs in the context of the SAP Controlling (CO) module, particularly when dealing with cost center accounting or internal orders. This error indicates that a specific format key has already been processed, and therefore, the system cannot apply a lock on it for further processing.
  Causes:
  
  Concurrent Processing: The format key may be in use by another user or process, leading to a conflict when trying to lock it for processing.
  Incomplete Processing: If a previous transaction involving the format key was not completed successfully, it may still be marked as processed.
  System Configuration: There may be issues with the configuration of the controlling area or the format key itself.
  
  Solutions:
  
  Check for Concurrent Users: Verify if another user is currently processing the same format key. If so, wait for them to complete their transaction.
  Review Transaction Logs: Check the transaction logs to