How To Fix /SAPAPO/CTM1423 - No source of supply found for external procurement

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CTM1 -

• Message number: 423

• Message text: No source of supply found for external procurement

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/CTM1423 - No source of supply found for external procurement ?

  The SAP error message /SAPAPO/CTM1423 indicates that the system could not find a source of supply for external procurement in the context of the SAP Advanced Planning and Optimization (APO) module, specifically within the Capacity Planning and Supply Network Planning functionalities. This error typically arises during the planning process when the system attempts to create procurement proposals but cannot identify a valid source for the required materials.
  Causes:
  
  Missing Source of Supply: There may be no valid source of supply defined for the material in the relevant planning area.
  Incorrect Master Data: The material master or vendor master data may not be set up correctly, leading to the absence of valid procurement sources.
  Planning Version Issues: The planning version being used may not have the necessary data or settings for external procurement.
  Procurement Type Settings: The procurement type for the material may not be set to allow external procurement (e.g., it may be set to in-house production only).
  Time Period Issues: The time period for which the planning is being executed may not have any valid supply sources available.
  Quota Arrangement: If quota arrangements are used, they may not be set up correctly or may not allow for the required procurement.
  
  Solutions:
  
  Check Source of Supply: Ensure that a valid source of supply (vendor) is maintained for the material in the system. This can be done by checking the material master data and ensuring that the vendor is assigned correctly.
  Review Master Data: Verify that the material master and vendor master data are complete and accurate. Ensure that the procurement type allows for external procurement.
  Check Planning Version: Make sure that the planning version being used has the necessary data and settings for external procurement.
  Adjust Procurement Type: If the material is not set up for external procurement, change the procurement type in the material master to allow for external procurement.
  Review Time Period: Check the planning horizon and ensure that the time period being planned has valid sources of supply.
  Quota Arrangement Review: If quota arrangements are in place, ensure they are correctly configured and allow for the required procurement.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MM03 (Display Material), ME11 (Create Info Record), or ME21N (Create Purchase Order) to check and maintain relevant data.
  APO Settings: Review the settings in the APO system for the specific planning area and ensure that the configuration supports external procurement.
  Documentation: Refer to SAP documentation or help files for detailed guidance on setting up sources of supply and procurement types.
  
  By addressing the above causes and implementing the suggested solutions, you should be able to resolve the error message /SAPAPO/CTM1423 and ensure that the system can find a source of supply for external procurement.