Message type: E = Error
Message class:  KOPV - Messages for Plan Version Copying 
Message number: 005
Message text: Target version &1 must not be used
Target version &V1& is an actual version or version 0. You must not use
these versions as the target version.
No copying takes place.
Specify a different target version.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message KOPV005 ("Target version &1 must not be used") typically occurs in the context of controlling (CO) and profitability analysis (CO-PA) when there is an issue with the versioning of data in the system. This error indicates that the target version specified in a transaction or report is not valid for the operation being performed.
Cause:
Invalid Version: The specified target version (&1) is not configured correctly in the system or is not allowed for the specific operation.
Version Settings: The version may be set to a status that does not permit its use (e.g., it might be marked as "not active" or "not usable").
Configuration Issues: There may be issues in the configuration of the controlling area or the version settings in the system.
Solution:
Check Version Configuration:
Go to the configuration settings for controlling (transaction code SPRO).
Navigate to the relevant settings for versions in CO (e.g., "Controlling" -> "General Controlling" -> "Versions").
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