How To Fix ATP_SE031 - Requirement class &3 not allowed (no alloc. check allowed) (&1, &2)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 031

• Message text: Requirement class &3 not allowed (no alloc. check allowed) (&1, &2)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ATP_SE031 - Requirement class &3 not allowed (no alloc. check allowed) (&1, &2) ?

  The SAP error message ATP_SE031 indicates that there is an issue with the requirement class specified in the system. This error typically occurs in the context of availability checks (ATP - Available to Promise) when the requirement class is not allowed for allocation checks. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Requirement Class Not Configured: The requirement class specified in the error message is not configured to allow allocation checks. This can happen if the requirement class is not set up correctly in the system.
  Incorrect Configuration: The configuration for the requirement class may not include the necessary settings to allow for allocation checks.
  Master Data Issues: The material master or other related master data may not be set up correctly, leading to this error when trying to perform an availability check.
  
  Solution:
  
  
  Check Requirement Class Configuration:
  
  Go to the configuration settings for the requirement class in the SAP system (Transaction code: SPRO).
  Navigate to Logistics Execution > Availability Check > Define Requirement Classes.
  Ensure that the requirement class in question is set up to allow allocation checks.
  
  
  
  Adjust Material Master Settings:
  
  Check the material master data for the material associated with the error (Transaction code: MM03).
  Ensure that the appropriate availability check is assigned to the material in the MRP (Material Requirements Planning) view.
  
  
  
  Review Allocation Check Settings:
  
  Ensure that the allocation check settings are correctly defined in the system.
  You can check this in the configuration under Logistics Execution > Availability Check > Define Allocation Check.
  
  
  
  Consult Documentation: If you are unsure about the settings, refer to SAP documentation or consult with your SAP Basis or functional team for guidance on the specific requirement class and its settings.
  
  
  Testing: After making changes, perform a test to see if the error persists. You may need to clear any caches or restart relevant processes to see the changes take effect.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM03 (Material Master), SPRO (Customizing), and others that may help in troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP Notes can provide additional insights or solutions.
  User Forums: Consider checking SAP community forums or user groups for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify the cause of the ATP_SE031 error and implement a solution to resolve it.