The Ad-ID invoice log includes the following 4 transaction types:

Deposit Invoice: For purchases made on the account. The only invoices that users will need to process for payment (unless pre-paid by credit card). Emailed to invoice recipients at end of day.

Usage Receipt: Reflects the usage that has occurred on the account (code/prefix creation). Usage is combined for the entire day. Usage receipts are not available until the following day. Payment is not required.

Credit Memo: Refunds made to the account. Payment is not required. 

Reversal Receipt: A credit has been processed for a code by Client Success. Payment is not required.

Please see the Billing section for more information related to billing and invoicing questions.