Message type: E = Error
Message class:  KOSA - Product Cost Collector 
Message number: 121
Message text: Business area is mandatory in company code &1
A business area is mandatory in company code &V1&. You must therefore
assign a business area to the product cost collector.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Enter a business area for the product cost collector.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message KOSA121 indicates that a business area is mandatory for the specified company code. This error typically occurs when you are trying to post a transaction or create a document that requires a business area, but one has not been specified.
Cause: Missing Business Area: The primary cause of this error is that the business area field is left blank in the transaction you are trying to execute. Configuration Settings: The system may be configured to require a business area for certain transactions, and if it is not provided, the error will be triggered. Transaction Type: Certain transaction types or document types may require a business area to be specified based on the configuration of the company code.
Solution: Enter Business Area: When you encounter this error, check the transaction screen where you are entering data. Look for the field labeled "Business Area" and enter the appropriate business area code. Check Configuration: If you
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