hi @salilsingh-9961 , welcome to Microsoft QnA forum.
You can schedule the data sync as mentioned in below screenshot. We can setup the sync frequency and it would be able to trigger accordingly.
Another way to schedule it is through Azure Automation account. Please go through the below article for the same:
Schedule Data Sync with Azure SQL Database use an Automation account
Related to data sync tables these tables are needed as mentioned below:
"The Sync Metadata Database contains the metadata and log for Data Sync. The Sync Metadata Database has to be an Azure SQL Database located in the same region as the Hub Database. The Sync Metadata Database is customer created and customer owned. You can only have one Sync Metadata Database per region and subscription. Sync Metadata Database cannot be deleted or renamed while sync groups or sync agents exist. Microsoft recommends to create a new, empty database for use as the Sync Metadata Database. Data Sync creates tables in this database and runs a frequent workload."
Please let us know if this helps or we can discuss further.
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