Message type: E = Error
Message class:  CNV_PE - General messages for posting engine 
Message number: 447
Message text: Job &1/&2 was unlocked for release
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.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message CNV_PE447 indicates that a job (specifically a conversion job) was unlocked for release. This message typically arises in the context of data migration or conversion processes, particularly when using SAP's tools for data migration, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
Cause: The error message CNV_PE447 can occur due to several reasons: Job Status: The job may have been set to a status that does not allow it to proceed, such as being in a "locked" state. User Permissions: The user executing the job may not have the necessary permissions to release or unlock the job. System Configuration: There may be configuration issues within the SAP system that prevent the job from being released. Job Dependencies: The job may depend on other jobs or processes that have not yet completed or have failed.
Solution: To resolve the CNV_PE447 error, you can take the following steps: Check Job Status: Go to transaction
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_PE446 Unable to lock job &1/&2 due to its status
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_PE445 Field &1 does not exist in given structure
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_PE448 Reference parameter &1 does not exist in interface &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_PE449 Debit/credit reference parameter &1 does not exist in interface &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.