How To Fix CM129 - No component allocation exists

SAP Error Message - Details

• Message type: E = Error

• Message class: CM - Task list messages: Material component allocations

• Message number: 129

• Message text: No component allocation exists

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CM129 - No component allocation exists ?

  The SAP error message CM129 ("No component allocation exists") typically occurs in the context of production planning and control, particularly when dealing with production orders, bill of materials (BOM), or component allocation in the system. This error indicates that the system cannot find a valid allocation of components for a specific production order or process.
  Causes of CM129 Error
  
  
  Missing Component Allocation: The most common cause is that the production order does not have any components allocated to it. This can happen if the BOM is not correctly assigned to the production order.
  
  
  Incorrect BOM Configuration: The BOM may not be correctly configured or may not exist for the material being produced.
  
  
  Production Order Status: The production order may be in a status that does not allow for component allocation (e.g., if it is already completed or closed).
  
  
  Material Master Data Issues: There may be issues with the material master data, such as missing or incorrect information related to the components.
  
  
  Plant or Storage Location Issues: The components may not be available in the specified plant or storage location.
  
  
  Solutions to CM129 Error
  
  
  Check BOM Assignment: Ensure that the correct BOM is assigned to the production order. You can do this by checking the production order details and verifying the BOM.
  
  
  Create or Update BOM: If the BOM does not exist or is incorrect, create or update the BOM for the material in question.
  
  
  Check Component Availability: Verify that the components are available in the specified plant and storage location. If they are not available, you may need to procure them.
  
  
  Review Production Order Status: Check the status of the production order. If it is in a status that does not allow for component allocation, you may need to change the status or create a new production order.
  
  
  Use Transaction Codes: Utilize relevant transaction codes such as:
  
  CS03: Display BOM
  CO03: Display Production Order
  MD04: Stock/Requirements List to check component availability.
  
  
  
  Consult with SAP Support: If the issue persists, consider reaching out to your SAP support team or consulting SAP documentation for further troubleshooting.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with transaction codes related to production orders and BOMs, such as CO01 (Create Production Order), CO02 (Change Production Order), and CS01 (Create BOM).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorization: Ensure that you have the necessary authorizations to view and modify production orders and BOMs.
  
  By following these steps, you should be able to identify the cause of the CM129 error and implement the appropriate solution.