How To Fix An Incorrect Invoice Allocation From A Previous (Reconciled) Month?

Hi, 

In February, we received payment for an invoice. This payment was allocated to the incorrect invoice number (but for the same value).

Now the customer shows an ageing debt for this invoice that they paid in good faith.

We work on the accrual system here, so February is closed off and reconciled. 

What is the cleanest way to fix this?

• Is there a way I can credit this customers account in our system so I can then allocate the payment to the correct invoice they listed on their remittance?

• If so - how to I date this?  and which steps should I follow in MYOB?  (I have seen a few different variations to fix this but am concerned with my current EOM (May 2024 ) balancing if I interfere.)

I inherited this error and am new to MYOB.

Thanks in anticipation of any help on offer here.

Suzy  :)