Hello everyone,
Can someone please explain to me the following:
When I need to make a refund to a customer, if I make it only through payment (without making an invoice and connecting payment and Invoice) it is not visible in the customer’s statement. Can someone explain why, and is there any chance or option where I can see all transactions with a certain customer?
Hope I didn’t ask a question that is already answered 
Regards,
Martina
Bcollege
Cash transactions do not get posted to customer or supplier accounts.
Statements only show transactions on the customer or supplier account which are a sub-accounts of the Accounts Receivable or Payable accounts. So cash purchase and sales are never shown on a statement.
First create a credit note.
Then create a payment (to the original invoice).
On the statement (transactions) you should then see:
Sales invoice
Receipt
Credit Note
Refund
Thank you very much. 
Regards,
Martina
Bcollege