Can print a fully shipped OE confirmation but cannot email it.

SUGGESTED

Sage 300 2021. When completing an order and shipping all items (nothing left on BO) when clicking post there is an option to print the order confirmation report. If we choose print destination it prints fine, but if we select customer (email) it says no documents found. I know you can't reprint an OE confirmation on an order that is completely shipped, but this is happening during posting and as mentioned it will print to print destination, just won't email to customer