How To Fix ATP_SE050 - Reference to predecessor request item &1 &2 not found

SAP Error Message - Details

• Message type: E = Error

• Message class: ATP_SE - Message class for ATP-Services

• Message number: 050

• Message text: Reference to predecessor request item &1 &2 not found

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 ATP_SE050 - Reference to predecessor request item &1 &2 not found ?

  The SAP error message ATP_SE050, which states "Reference to predecessor request item &1 &2 not found," typically occurs in the context of Advanced Planning and Optimization (APO) or in the context of the Available-to-Promise (ATP) check. This error indicates that the system is unable to find a predecessor request item that is referenced in the current operation or transaction.
  Causes:
  
  Missing Predecessor Item: The predecessor request item that is being referenced does not exist in the system. This could be due to deletion or incorrect data entry.
  Incorrect Configuration: There may be issues with the configuration of the planning or production process that leads to the system not being able to find the predecessor item.
  Data Inconsistency: There might be inconsistencies in the master data or transaction data that prevent the system from linking the items correctly.
  Transport Issues: If the system has recently undergone a transport of changes, it is possible that the predecessor item was not transported correctly.
  
  Solutions:
  
  Check for Existence: Verify that the predecessor request item (identified by the numbers &1 and &2 in the error message) actually exists in the system. You can do this by searching for the item in the relevant transaction or report.
  Review Configuration: Check the configuration settings related to the planning and production processes to ensure that they are set up correctly.
  Data Consistency Check: Run consistency checks on the relevant master data and transaction data to identify and correct any inconsistencies.
  Recreate the Item: If the predecessor item is missing, you may need to recreate it or adjust the current request to remove the dependency on the missing item.
  Consult Logs: Check the application logs or system logs for any additional error messages or warnings that might provide more context about the issue.
  Contact Support: If the issue persists and you are unable to resolve it, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/ATP_CHECK or /SAPAPO/ORDERS to analyze the ATP checks and order details.
  Documentation: Review SAP documentation related to ATP and APO for best practices and troubleshooting steps.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the ATP_SE050 error in your SAP system.