How To Fix ATP_SE044 - Schedule line ID must be numerical; &1 conversion not possible (&2, &3)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 044

• Message text: Schedule line ID must be numerical; &1 conversion not possible (&2, &3)

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message ATP_SE044 - Schedule line ID must be numerical; &1 conversion not possible (&2, &3) ?

  The SAP error message ATP_SE044 indicates that there is an issue with the schedule line ID in the context of Available-to-Promise (ATP) checks. Specifically, the error states that the schedule line ID must be numerical, and the conversion of the provided value is not possible.
  Cause:
  
  Non-Numerical Input: The most common cause of this error is that the schedule line ID being processed contains non-numerical characters (e.g., letters, special characters).
  Data Corruption: There may be data corruption in the database where the schedule line ID is stored.
  Incorrect Configuration: The configuration settings in the system may not be set up correctly, leading to improper handling of schedule line IDs.
  Custom Code Issues: If there are custom developments or enhancements in the system, they may be incorrectly handling the schedule line ID.
  
  Solution:
  
  Check Input Data: Verify the input data for the schedule line ID. Ensure that it contains only numerical values. If you are using a program or transaction to input this data, check for any user input errors.
  Data Validation: Implement data validation checks in the program or transaction to ensure that only numerical values are accepted for schedule line IDs.
  Review Custom Code: If there are any custom developments, review the code to ensure that it correctly handles the conversion of schedule line IDs and does not introduce non-numerical values.
  Database Integrity Check: Perform a database integrity check to ensure that the data stored in the relevant tables is correct and does not contain any corrupted entries.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches or updates that could resolve the issue.
  Consult Documentation: Review the SAP documentation related to ATP and schedule line processing to ensure that all configurations are set up correctly.
  
  Related Information:
  
  Transaction Codes: You may want to check transactions like MD04 (Stock/Requirements List) or CO09 (Availability Overview) to see how schedule lines are being processed.
  Debugging: If you have access to debugging tools, you can set breakpoints in the relevant function modules or programs to trace where the error occurs.
  SAP Community: Consider searching or posting in the SAP Community forums for additional insights or similar experiences from other users.
  
  By following these steps, you should be able to identify the root cause of the ATP_SE044 error and implement a solution to resolve it.