How To Fix /SAPAPO/ATP156 - You cannot activate third-party and RBA or production together

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/ATP -

• Message number: 156

• Message text: You cannot activate third-party and RBA or production together

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/ATP156 - You cannot activate third-party and RBA or production together ?

  The SAP error message /SAPAPO/ATP156 indicates that there is a conflict in the configuration of the Advanced Planning and Optimization (APO) system regarding the activation of third-party processing and the use of RBA (Resource-Based Allocation) or production together. This error typically arises when a user attempts to activate both third-party processing and production or RBA for the same product or order type, which is not allowed in the system.
  Cause:
  
  Configuration Conflict: The system is designed to prevent the simultaneous activation of third-party processing and production/RBA for the same product. This is because these processes have different logistics and planning implications.
  Master Data Settings: The product master or the configuration settings for the order type may have conflicting settings that lead to this error.
  Planning Strategy: The planning strategy assigned to the product may not support the combination of third-party processing and production.
  
  Solution:
  
  Review Configuration: Check the configuration settings in the APO system to ensure that third-party processing and production/RBA are not activated for the same product or order type. You may need to choose one method of fulfillment.
  Adjust Master Data: Review the product master data and ensure that the settings for third-party processing and production/RBA are correctly defined. You may need to adjust the settings to align with your business process.
  Change Planning Strategy: If applicable, consider changing the planning strategy for the product to one that supports either third-party processing or production, but not both.
  Consult Documentation: Refer to SAP documentation or help notes related to the specific error message for additional guidance on resolving the issue.
  Testing: After making changes, perform testing to ensure that the error is resolved and that the desired functionality is achieved.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Transaction Codes: Familiarize yourself with transaction codes such as /SAPAPO/ATP for checking availability and /SAPAPO/MC90 for configuration settings.
  User Roles: Ensure that the user has the appropriate roles and authorizations to make changes to the configuration and master data.
  Consult SAP Support: If the issue persists after attempting the above solutions, consider reaching out to SAP support for further assistance.
  
  By addressing the configuration and master data settings, you should be able to resolve the error and proceed with your planning activities in SAP APO.