Issue -- Credit memo refund error - Inconsistent rate information

Issue: Below error get raised when try to process refund for the credit memo.

The refund was not processed because the Payables invoice was not created for the following reasons: Inconsistent rate information(AR-856622)

Solution:

Root Cause of issue: 

For above Credit Memo, corporate type conversion rate of 01 May 2019 is used.

In system the conversion rate for corporate for USD to GBP for date May 1 2019 is "0.77311100"

but on credit memo the conversion rate is "0.76800570". This is the root cause of error.

Solution:

Please Incomplete the credit memo from the login user which was used to create it and after that click on mobile like icon on currency which will open the conversion information window, please change the rate there to match with system value "0.77311100".

After that save & complete the credit memo and try to refund it. It should work.