Difference in Create Automatic Receipts and Create Receipt Remittance Batch

Summary

What is the funtionality difference in the processes Automatic Receipt & Receipt Remittance

Content

Hello:

I hope this is a quick question for the seasoned Users!   We are implementing the ACH functions for with our AR, and I'm wondering what the 2nd processes after Create Automatic Receipts (I know the payment is applied to the Customer's account when the automatic receipts process is approved), Create Receipt Remittance. I understand once the automatic receipts are approved, the batch cannot be changed before the settlement batch is created, so I'm wondering why there's another step in between.  I assume there is no accounting that takes place during receipt remittance, since that would happen during automatic receipts, correct?