How To Fix C+306 - Error while issuing costing numbers

SAP Error Message - Details

• Message type: E = Error

• Message class: C+ -

• Message number: 306

• Message text: Error while issuing costing numbers

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message C+306 - Error while issuing costing numbers ?

  The SAP error message C+306, which indicates "Error while issuing costing numbers," typically arises during the costing process in SAP, particularly when dealing with product costing or material valuation. This error can occur for various reasons, and understanding the cause is essential for resolving it.
  Causes of C+306 Error
  
  
  Missing Costing Data: The material or product may not have the necessary costing data maintained in the system. This could include missing cost estimates or valuation data.
  
  
  Incorrect Configuration: There may be issues with the configuration settings in the controlling (CO) module or material management (MM) module that affect how costing is processed.
  
  
  Locked or Inconsistent Data: The costing data might be locked or inconsistent due to previous transactions or errors in the system.
  
  
  Authorization Issues: The user may not have the necessary authorizations to perform the costing operation, leading to this error.
  
  
  Versioning Issues: If there are multiple versions of cost estimates, the system may not be able to determine which one to use.
  
  
  Solutions to C+306 Error
  
  
  Check Costing Data: Verify that all necessary costing data is maintained for the material or product. This includes checking for valid cost estimates and ensuring they are marked as active.
  
  
  Review Configuration Settings: Ensure that the configuration settings in the CO and MM modules are correctly set up. This may involve checking the costing variant, valuation classes, and other related settings.
  
  
  Unlock Data: If the costing data is locked, you may need to unlock it or resolve any inconsistencies. This could involve checking for any ongoing processes that might be locking the data.
  
  
  Authorization Check: Ensure that the user has the appropriate authorizations to perform the costing operation. This may require coordination with your SAP security team.
  
  
  Costing Version Management: If there are multiple versions of cost estimates, ensure that the correct version is being used. You may need to set the appropriate costing version in the transaction.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues.
  
  
  Related Information
  
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CK11N (Create Cost Estimate), CK40N (Change Cost Estimate), and CK24 (Display Cost Estimate) to manage costing data effectively.
  
  
  Documentation: Review SAP documentation related to product costing and material valuation for a deeper understanding of the processes involved.
  
  
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP support or your internal SAP support team for further assistance.
  
  
  By following these steps, you should be able to identify the cause of the C+306 error and implement a solution to resolve it.