How To Fix /SAPAPO/CTM4424 - The selection contains invalid sources of supply for in-house production

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CTM4 -

• Message number: 424

• Message text: The selection contains invalid sources of supply for in-house production

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/CTM4424 - The selection contains invalid sources of supply for in-house production ?

  The SAP error message /SAPAPO/CTM4424 indicates that there are invalid sources of supply for in-house production in the context of the SAP Advanced Planning and Optimization (APO) module, specifically when using the Capable-to-Match (CTM) functionality. This error typically arises during the planning process when the system encounters issues with the sources of supply that are designated for in-house production.
  Causes:
  
  
  Invalid Source of Supply: The source of supply defined for the production process may not be valid. This could be due to:
  
  The production resource is not available or is inactive.
  The production resource does not have the necessary capacity.
  The production resource is not assigned to the relevant product.
  
  
  
  Incorrect Master Data: Issues with master data such as:
  
  Incorrectly defined production versions.
  Missing or incorrect material master data.
  Incomplete or incorrect routing information.
  
  
  
  Planning Parameters: The planning parameters set in the system may not align with the available resources or production capabilities.
  
  
  Capacity Constraints: The production resource may be overloaded or not have enough capacity to fulfill the demand.
  
  
  Location Issues: The location of the production resource may not be valid for the specific planning run.
  
  
  Solutions:
  
  
  Check Master Data:
  
  Verify that the production resources are correctly defined and active.
  Ensure that the material master data is complete and accurate.
  Check the routing and production version for the materials involved.
  
  
  
  Review Planning Parameters:
  
  Ensure that the planning parameters are set correctly for the production resources.
  Adjust the planning strategy if necessary to align with available resources.
  
  
  
  Capacity Planning:
  
  Review the capacity of the production resources to ensure they can meet the demand.
  Adjust the capacity or scheduling of production resources if they are overloaded.
  
  
  
  Source of Supply Assignment:
  
  Ensure that the correct sources of supply are assigned to the materials in question.
  If necessary, reassign or add valid sources of supply for in-house production.
  
  
  
  Run Consistency Checks:
  
  Use transaction codes like /SAPAPO/CTM to run consistency checks on the planning data and identify any discrepancies.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific error message for additional insights and troubleshooting steps.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/CTM for planning runs and /SAPAPO/RESB for checking reservations.
  SAP Notes: Check for any SAP Notes that may address this specific error or provide patches and updates.
  User Forums: Engage with SAP community forums or user groups for shared experiences and solutions from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify the root cause of the error and implement the necessary solutions to resolve it.