PPM Contract Exchange Rate

Summary:

PPM Contract Exchange Rate

Content (required):

Hello

In Mexico we have some Domestic Customers which their invoice is issue in USD but they paid in MXN, Hence we setup the PPM Contracts in USD and the exchange rate is the Central Bank Exchange Rate.

So I issue one invoice in USD as of 15-Sep-2021 for 1,000.00 USD and the exchange rate is 20 pesos. Three weeks later the Customer requested to re-issue the invoice, so a credit memo and a new invoice as of 10-Oct-2021 are issue to replace the previous one, for the same amount in USD , however the new exchange rate is 22 pesos but I need to book as 20 pesos.