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

SAP Error Message - Details

• 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

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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 to check the material master data for the material in question.
  Verify that the correct requirements class is assigned in the relevant views (e.g., MRP view).
  
  
  
  Review ATP Configuration:
  
  Check the configuration settings for ATP checks in the system. This can be done in the transaction code SPRO under the relevant sections for Sales and Distribution or Material Management.
  Ensure that the settings for the ATP check are correctly defined and that they reference valid requirements classes.
  
  
  
  Check for Data Consistency:
  
  Run consistency checks on the material master and related data to ensure there are no discrepancies.
  You can use transaction codes like MM03 to view the material master and check for any missing or incorrect data.
  
  
  
  Consult Documentation:
  
  If you are unsure about the requirements class or ATP configuration, refer to SAP documentation or consult with your SAP functional consultant for guidance.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  MM02: Change Material Master
  MM03: Display Material Master
  OMD1: Requirements Class Configuration
  SPRO: SAP Reference IMG for configuration settings
  
  
  
  ATP Check: The ATP check is a critical function in SAP that determines the availability of materials for fulfilling customer orders. It considers stock levels, planned receipts, and other factors.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for LATP013 in the SAP Support Portal.
  
  
  By following these steps, you should be able to identify the cause of the LATP013 error and implement the necessary solutions to resolve it.