Message type: E = Error
Message class:  CNV_10996 - Messages for archive conversion 
Message number: 043
Message text: Original note from session &1 transferred to new session &2.
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_10996043 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This message indicates that an original note from one session has been transferred to a new session, which can happen due to various reasons related to data consistency, session management, or system performance.
Cause: Session Management: The error may arise if there are multiple sessions running simultaneously, and the system is trying to manage the data transfer between them. Data Consistency Issues: If there are inconsistencies in the data being processed, the system may attempt to transfer the note to ensure that the migration process can continue without data loss. Performance Issues: Long-running sessions or timeouts can lead to the system creating new sessions to handle the workload, resulting in this error message.
Solution: Check Session Status: Review the status of the sessions involved. Ensure that there are no hanging or failed
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_10996042 Active function module &1 exists.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10996041 Function module &1 is not active.
What causes this issue?  Archiving objects may contain archiving classes. To ensure that archiving sessions containing archiving classes will be conve...
CNV_10996044 Note 664551 was not implemented.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
CNV_10996045 File &1 is not accessible.
What causes this issue?  The program found that the specified archive file is accessible neither in the file system nor in the storage system.System R...
Click on this link to search all SAP messages.