I completed the transaction at the store.

An exchange or deal involving money for goods or services.
The transaction was processed quickly.
She received a receipt after the transaction.
He checked his bank statement for the transaction.
online transaction
financial transaction
secure transaction
deal
exchange
trade
I made a transaction at the store.

An instance of buying or selling something.
I completed a transaction online.
The bank confirmed my transaction.
She received a receipt for her transaction.
financial transaction
online transaction
cash transaction
deal
exchange
trade