How To Fix /SAPAPO/PPM_GENERATE121 - No valid mode combination exists for the PP/DS plan

/SAPAPO/PPM_GENERATE121 - Overview

• Message type: E = Error

• Message class: /SAPAPO/PPM_GENERATE -

• Message number: 121

• Message text: No valid mode combination exists for the PP/DS plan

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/PPM_GENERATE121 - No valid mode combination exists for the PP/DS plan ?

  The SAP error message /SAPAPO/PPM_GENERATE121 indicates that there is no valid mode combination for the Production Planning and Detailed Scheduling (PP/DS) plan. This error typically arises during the planning process when the system cannot find a suitable combination of resources, production modes, or other parameters necessary to execute the planning run.
  Causes:
  
  Missing or Incorrect Mode Combinations: The planning mode combinations defined in the system may not match the requirements of the planned orders or production processes.
  Resource 
  Configuration Issues: Resources may not be properly configured or may not have the necessary modes assigned to them.
  Master Data Issues: Problems with master data, such as incorrect or incomplete data for materials, resources, or production versions, can lead to this error.
  Capacity Constraints: If the capacity of resources is insufficient or not defined correctly, it may lead to the absence of valid combinations.
  Planning Version Issues: The planning version being used may not have the correct settings