Apply EUR Credit Memo to a USD Invoice

We have a situation where a customer cancelled their subscriptions in EUR and we created new subscriptions in USD. When we terminated the subscriptions in EUR, Suitebilling created a credit memo in EUR on the customer account. When we activated and billed the new USD subscriptions the invoice generated was in USD. What is the preferred method to apply the EUR Credit Memo to a USD invoice?

We have the CM and INV Created, I know it has to run through Undeposited funds then we use a JE to offset by putting the Customer in the name field on the JE, but when I T-Account it I end up with extra money that doesn't offset. What is the preferred way to handle?