How To Fix /SAPAPO/OO_TR308 - Specify a source of supply for in-house production

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OO_TR -

• Message number: 308

• Message text: Specify a source of supply for in-house production

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OO_TR308 - Specify a source of supply for in-house production ?

  The SAP error message /SAPAPO/OO_TR308 indicates that there is an issue with the planning of in-house production in the Advanced Planning and Optimization (APO) module. Specifically, it means that the system requires a source of supply for the in-house production process, but none has been specified.
  Cause:
  
  Missing Source of Supply: The most common cause of this error is that the system does not have a defined source of supply for the material in question. This could be due to missing or incorrect master data.
  Incorrect Planning Settings: The planning settings for the material may not be configured correctly, leading to the system not being able to determine where to source the production.
  Production Version Issues: If the production version is not set up correctly or is missing, the system may not know how to produce the material.
  Material Master Data: The material master data may not have the necessary information filled out, such as the production plant or the relevant procurement type.
  
  Solution:
  
  
  Define Source of Supply:
  
  Go to the material master record and ensure that a valid source of supply is defined for the material in the relevant plant.
  Check the "Purchasing" and "MRP" views of the material master to ensure that the procurement type is set to "In-house production" and that a production version is assigned.
  
  
  
  Check Production Versions:
  
  Ensure that a production version exists for the material. You can do this by navigating to the production version settings in the material master.
  If a production version is missing, create one that specifies the relevant routing and bill of materials (BOM).
  
  
  
  Review Planning Settings:
  
  Check the planning settings in the APO system to ensure that they are correctly configured for the material and the plant.
  Ensure that the planning area is set up correctly and that the material is included in the planning run.
  
  
  
  Run MRP:
  
  After making the necessary changes, run the Material Requirements Planning (MRP) process again to see if the error persists.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help notes related to this error message for additional context and troubleshooting steps.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MM02 (Change Material), C223 (Maintain Production Versions), or MD02 (MRP Run) to make the necessary changes.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  User Roles: Ensure that you have the necessary authorizations to make changes to the material master and production settings.
  
  By following these steps, you should be able to resolve the error message /SAPAPO/OO_TR308 and ensure that a source of supply for in-house production is specified correctly.