Hello @Amith Kumar
It sounds like the issue might be related to the absence of a full backup for the specified data source. This can happen if the initial full backup was not completed successfully or if it was deleted or moved. Here are a few steps you can take to troubleshoot and resolve the issue:
Verify Full Backup: Ensure that the first full backup for the data source BIZTALK_TUOT/BiztalkIntegrationDocumentsDb
exists and is accessible. If it's missing, you may need to perform a new full backup.
Ensure Sufficient Disk Space: Make sure that there is enough disk space available on the backup destination to store the full backup. Insufficient disk space can cause backup failures.
You can also take a look a this doc https://learn.microsoft.com/en-us/biztalk/core/backing-up-and-restoring-biztalk-server
If you have any further queries, please let us know we are glad to help you. If you found it helpful, could you kindly click the “Accept Answer and upvote” on the post.