Differences b/w revenue and receipts.

plsssss clarify the differences b/w revenue and receipts.

In my ICWA book the difference is like this................

Receipts .......... are the inflow of money into the business

Revenue...............is the aggregate exchange value received for goods and services provided to the customers.

my doubt is............ aggregate exchange itself is the inflow of money into the business na. plssssssss clarify