How To Fix CR403 - Mixed resource cannot be selected when advanced planning is selected

SAP Error Message - Details

• Message type: E = Error

• Message class: CR - (1,099) Work Center; (100,200) Capacity

• Message number: 403

• Message text: Mixed resource cannot be selected when advanced planning is selected

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 CR403 - Mixed resource cannot be selected when advanced planning is selected ?

  The SAP error message CR403 ("Mixed resource cannot be selected when advanced planning is selected") typically occurs in the context of SAP Advanced Planning and Optimization (APO) or SAP S/4HANA when trying to plan or schedule production using a resource that is defined as a mixed resource. Mixed resources are those that can handle multiple product types or variants, but they may not be compatible with certain advanced planning functionalities.
  
  Cause:
  The error arises when:
  
  Mixed Resource Configuration: The resource you are trying to use is configured as a mixed resource, which means it can handle different products but is not compatible with the advanced planning features you are trying to use.
  Planning Strategy: The planning strategy or method you are using may not support mixed resources in the context of advanced planning.
  Resource Selection: The system is attempting to select a mixed resource for a planning operation that requires a dedicated resource.
  
  
  Solution:
  To resolve the