What is debit card txn?

Excuse me, could you clarify what you mean by "debit card txn"? It seems like you're referring to a transaction made with a debit card, but I just want to make sure I have the correct context. If that's the case, a debit card transaction, or "txn" for short, is when you use your debit card to make a purchase or withdraw cash from an ATM or bank. It's a way to access the funds in your checking account without having to write a check or use cash. When you make a debit card transaction, the money is immediately deducted from your account balance. Is that what you were asking about?