How To Fix KO320 - Variance key & does not exist or is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: KO - Master data for CO orders

• Message number: 320

• Message text: Variance key & does not exist or is not allowed

What causes this issue?

You entered a variance key which
does not exist in the system.
can only be used in combination with a
<DS:GLOS.cost_object_hierarchy>cost object hierarchy</>.
You changed the variance key, although variances were already
calculated in the product cost collector.

How to fix this error?

Select a valid variance key.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KO320 - Variance key & does not exist or is not allowed ?

  The SAP error message KO320, which states "Variance key & does not exist or is not allowed," typically occurs in the context of controlling (CO) when working with variance calculation in SAP. This error indicates that the system cannot find the specified variance key or that the key is not permitted for the operation you are trying to perform.
  Causes of KO320 Error
  
  
  Non-Existent Variance Key: The variance key you are trying to use does not exist in the system. This could be due to a typo or because it has not been defined in the configuration.
  
  
  Authorization Issues: The user may not have the necessary authorizations to access the variance key.
  
  
  Configuration Issues: The variance key may not be properly configured in the system. This could include settings in controlling area, cost center, or internal order.
  
  
  Incorrect Master Data: The master data related to the cost object (like cost centers or internal orders) may not be set up correctly to allow the use of the specified variance key.
  
  
  Period Lock: The period in which you are trying to post may be locked, preventing the use of certain variance keys.
  
  
  Solutions to KO320 Error
  
  
  Check Variance Key: Verify that the variance key you are using is correctly entered and exists in the system. You can check this in the configuration settings under the controlling area.
  
  
  Review Authorizations: Ensure that the user has the necessary authorizations to use the variance key. This may involve checking user roles and permissions.
  
  
  Configuration Review: Go to the configuration settings in SAP (transaction code SPRO) and check the settings for variance keys under the controlling area. Make sure that the variance key is defined and allowed for the relevant cost objects.
  
  
  Master Data Check: Review the master data for the cost center or internal order to ensure that it is correctly set up to use the variance key.
  
  
  Period Management: Check if the posting period is open and not locked. If it is locked, you may need to unlock it or post in an open period.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific details on variance keys and their configuration.
  
  
  Related Information
  
  Transaction Codes: You may use transaction codes like OKB9 to manage variance keys and KOB1 to view actual postings related to cost objects.
  SAP Notes: Check SAP Notes for any known issues or patches related to the KO320 error.
  User Forums: Engage with SAP community forums or user groups for additional insights and solutions from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify the cause of the KO320 error and implement the necessary solutions to resolve it.