Receipts API vs Auto Lock Box

Hi All,

We have a 3rd party payment file(similar to a bank file) which we want to use and create receipts and apply cash. Number of records in the file are about 500 each day. There are only 4-5 fields such as Payment Amount Customer Number and Invoice against which payment was made are sent in the file.

I wanted to understand what should be the best approach here? Should we use the Receipts API and staging table approach or should we use the standard auto lockbox functionality for our requirement?

Thanks

Saurabh