Dear Odoo Experts,

Created an invoice for $ 250.
Customer paid $ 175, So created customer payment for mentioned amount.
Now there is a situation that After few months, I have to refund the Invioce.
So How I should handle this thing ?
As per my knowledge I have unreconcile the customer payment of $ 175.
Then did refund of invoice but entry for $ 175 customer payment is still there.
and refund invoice is created for $ 250 amount.
Please guide me how to handle this case and it is necessary that I have to keep log that on specific date $ 175 has been paid for relevant invoice which was cancelled or refunded on specific date.  

Thanks in Adv.

Warm Regards,
Kevin.