When a payment is recorded in AffinityLive, 1 receipt is registered. This receipt will list all invoices to which the payment was allocated.
To find a receipt, you could simply locate the invoice (View Invoice), and then under the Payments section, click the receipt number. An invoice may have more than 1 receipt.

Alternately, you may use the Filter button. This will give you the option to filter the results to a specific selection.
Once your search has run, click the receipt number to view the receipt details. The details are based on the details entered when the payment was recorded. However, you can modify some of the receipt details after the fact.
Method - you may update the receipt method at any time.
Reference - enter or change the receipt reference as needed.
Received - modify the date payment was received.
Owner - adjust the receipt owner.
If AffinityLive is integrated to an online accounting system then you must record payment inside that system. The sync process that occurs regularly (as part of the integration) will pull back this payment information and will register a receipt inside AffinityLive.