How To Fix U9138 - Material &1 plant &2 prod.vers. &3: Component &4 is a by-product

SAP Error Message - Details

• Message type: E = Error

• Message class: U9 - Message Class for Output in Application Log

• Message number: 138

• Message text: Material &1 plant &2 prod.vers. &3: Component &4 is a by-product

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message U9138 - Material &1 plant &2 prod.vers. &3: Component &4 is a by-product ?

  The SAP error message U9138 indicates that there is an issue related to a component in a production order or bill of materials (BOM) that is classified as a by-product. This error typically arises in the context of production planning and execution, particularly when dealing with materials that are not standard components but rather by-products of a production process.
  Cause:
  The error message U9138 is triggered when:
  
  A component in the BOM or production order is defined as a by-product, but the system expects it to be a standard component.
  The production version or the plant configuration does not support by-products in the context of the operation being performed.
  There may be inconsistencies in the master data setup for the material, plant, or production version.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the BOM and Production Version:
  
  Verify the BOM for the material in question and ensure that the component is correctly defined as a by-product if that is the intended classification.
  Check the production version to ensure it is set up to handle by-products.
  
  
  
  Review Material Master Data:
  
  Go to the material master data for the component and check the settings related to by-products. Ensure that the material type and other relevant settings are correctly configured.
  
  
  
  Adjust Production Order:
  
  If the production order is incorrectly referencing a by-product as a standard component, you may need to adjust the order or the BOM to reflect the correct classification.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources related to by-products and production processes to ensure compliance with best practices.
  
  
  
  Check Configuration Settings:
  
  If you have access to configuration settings, check the settings related to by-products in the production planning module to ensure they are correctly configured.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance, especially if this is a recurring issue.
  
  
  
  Related Information:
  
  By-Products in SAP: By-products are materials that are produced incidentally during the manufacturing process. They are typically not the main output but can still have value and may need to be tracked in the system.
  Material Types: Ensure that the material types for both the main product and by-products are correctly defined in the system.
  Production Planning (PP) Module: Familiarize yourself with the functionalities of the PP module in SAP, as it deals with production orders, BOMs, and material requirements planning.
  
  By following these steps, you should be able to identify the root cause of the U9138 error and implement a solution to resolve it.