The wizard cannot copy the backup files needed to continue. Use SQL Server Management Studio to backup

Summary

Error: “The wizard cannot copy the backup files needed to continue. Use SQL server Management Studio to backup the MAS_System.bak and company databases that you want to migrate. Then copy the .bak files to the following location on the server where SQL Server is installed: \\ServerName\C$\Program Files\Microsoft SQL Server\MSSQL11..SageXXXXXX\MSSQL\Data. Have you copied the .BAK files? Click Yes to continue. Click No to exit the Wizard”

Use caution when working with the below product functionality. Always create a backup of your data before proceeding with advanced solutions. These steps require knowledge of database engines and application databases (DBs) used by your Sage product (including Microsoft/Transact SQL, Pervasive SQL, or MySQL, etc.). Customer Support is not responsible for assisting with these steps and cannot be responsible for errors resulting from changes to the database engine or DBs. Before making changes, backup all system and application DBs required for a full restore. Contact an authorized business partner or DB administrator for assistance.

Cause

The error message will appear on a SQL parallel/upgrade on same server.

Resolution

Make sure both the Source and Target SQL Server Service are running with the ‘Local System’ or Domain Admin account
Based on the error message, create a folder location that matches the one indicated in the message.
Place MAS_System.bak file in that location.
Run Parallel Migration once again.

Note: This is a known issue being investigated.