How To Fix LATP013 - Requirements class &1 does not exist; ATP check not possible

LATP013 - Overview

• Message type: E = Error

• Message class: LATP - Messages for Package LATP

• Message number: 013

• Message text: Requirements class &1 does not exist; ATP check not possible

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 LATP013 - Requirements class &1 does not exist; ATP check not possible ?

  The SAP error message LATP013 indicates that the system is unable to perform an Available-to-Promise (ATP) check because the requirements class specified does not exist. This can occur in various scenarios, particularly when dealing with inventory management, sales orders, or production planning.
  
  Cause:
  
  Missing Requirements Class: The requirements class specified in the material master or in the configuration does not exist in the system.
  Incorrect Configuration: The configuration settings for the ATP check may not be set up correctly, leading to the system looking for a non-existent requirements class.
  Data Inconsistency: There may be inconsistencies in the data, such as missing or incorrect entries in the material master or related tables.
  
  
  Solution:
  
  
  Check Requirements Class:
  
  Go to the transaction code OMD1 (or use the relevant transaction for your version) to check the requirements classes defined in your system.
  Ensure that the requirements class referenced in the error message exists and is correctly configured.
  
  
  
  Update Material Master:
  
  Use transaction code MM02