Matching Transactions Missing

SOLVED

Hi.

I am trying to MATCH a transaction in banking for an invoice that was paid to me yesterday. However the invoice that I raised and sent to my customer is not listed in Section 1 where the invoices to MATCH are populated. There are other invoices in the list but not the one that I need for this transaction. I don't want to add a new transaction unless I have to as this amount already has an invoice raised against it, I just cant get it on the list so I can select it.

Why would this happen, and what can I do to get the invoice on the list so I can MATCH it?

Thanks in advance.

J.