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

ATP_SE031 - Overview

• 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

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_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: