Message type: E = Error
Message class:  CNV_20200_CHECK - Messages for check functions (company code merge) 
Message number: 139
Message text: IS-OIL-PRA is in use
IS-OIL-PRA is in use.
Error
You cannot run the transformation solution Company Code Merge because
certain prerequisites have not been met. We recommend that you contact
SAP for support by creating a ticket using component CA-LT-CNV.
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 CNV_20200_CHECK139 with the description "IS-OIL-PRA is in use" typically occurs during data migration or conversion processes, particularly when using the SAP Conversion Tools or during the implementation of SAP S/4HANA. This error indicates that the IS-OIL (Industry Solution for Oil and Gas) component is currently active or in use, which may prevent certain operations from being performed.
Cause: Active IS-OIL Component: The error arises when the IS-OIL component is active in the system, and the migration or conversion process is trying to perform actions that are not compatible with the active component. Data Migration Restrictions: Certain data migration activities may have restrictions when specific industry solutions are in use, as they may require specific configurations or data structures.
Solution: Check IS-OIL Usage: Verify if the IS-OIL component is indeed in use. You can do this by checking the installed components in your SAP system. Deactivate IS-OIL: If possible, consider deactivating the IS-OIL
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