@Girish Prajwal Firstly, apologies for the delay in responding here and any inconvenience this issue may have caused.
This is blog will help you in Validate WSUSContent Move was Successful. There are three different places where the WSUSContent configuration is utilized. If configured correctly, all these locations should point to the same path.
Also refer to Specifying Where to Store the Updates
Once migration completed content directory should get update automatically with existing patches.
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Hope this helps!
Kindly let us know if the above helps or you need further assistance on this issue.
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