How To Fix ATO091 - Invalid item ID &1. ID must have prefix &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ATO - Adaptation Transport Organizer Messages

• Message number: 091

• Message text: Invalid item ID &1. ID must have prefix &2

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 ATO091 - Invalid item ID &1. ID must have prefix &2 ?

  The SAP error message ATO091 "Invalid item ID &1. ID must have prefix &2" typically occurs in the context of Advanced Planning and Optimization (APO) or when working with configurable materials in SAP. This error indicates that the item ID you are trying to use does not conform to the expected format, specifically that it lacks the required prefix.
  Cause:
  
  Incorrect Item ID: The item ID you are trying to use does not start with the required prefix. This prefix is usually defined in the configuration settings of the system.
  Configuration Issues: The system may not be properly configured to recognize the item ID format you are using.
  Data Entry Error: There may have been a typographical error when entering the item ID.
  
  Solution:
  
  Check the Item ID: Verify that the item ID you are using is correct and that it starts with the required prefix. The prefix is usually defined in the material master or configuration settings.
  Review Configuration Settings: Check the configuration settings in the SAP system to ensure that the prefixes for item IDs are correctly defined. This can typically be found in the customizing settings for the relevant module (e.g., Sales and Distribution, Material Management).
  Correct Data Entry: If the item ID was entered manually, double-check for any typographical errors and correct them.
  Consult Documentation: Refer to the SAP documentation or help files for specific details on the required format for item IDs in your particular implementation.
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert who can provide further assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes related to material management and configuration, such as MM01 (Create Material), MM02 (Change Material), and others that may help in troubleshooting.
  User Roles and Permissions: Ensure that you have the necessary permissions to access and modify the item IDs in question.
  
  By following these steps, you should be able to identify the cause of the ATO091 error and implement a solution to resolve it.