Resolve Error: "You Cannot Perform a Bulk Merge Operation with a Group Larger than 4000 Records"

Scenario

When performing a Bulk Merge Operation, user gets an error "You Cannot Perform a Bulk Merge Operation with a Group Larger than 4000 Records"

Solution

Bulk merge has a limit of 4000 records unlike Marketing Campaigns. Sending a Marketing Campaign can be an alternate solution since it can send more emails than bulk merge.