When you delete a PAID invoice there’s an option to either delete the attached payment, or to convert it to a credit on account. If it’s the latter you should see the credit on the client detail screen and you can attach it to the new invoice.
You can also search the bank to see if the payment is there, obviously it helps if you know approximately the date/reference. If it has been removed then it will likely throw your bank balance out too.
I cannot find the payment on the date suggested so it must have been deleted. This account never balances as it is a private account which has many other transactions on it that are not business related so I couldn’t check the balance to make sure.
Interestingly though, when in the bank you can view the linked invoices but in the invoice you can not view the linked bank transactions.
Aha. Just found it on another invoice thank you.
What I was referring to is when you click on the Tagged button on a bank statement it shows you the linked invoice
but doing the same in Purchase Management does not provide the same function: