When the accounting currency, reporting currency and PO line currency is different, there are two voucher transaction for posting type of: purchase expenditure for product when post purchase order invoice and the value is not 0. Customer needs to manually adjust the general ledger.

This issue has been logged in Issue 838716 and currently is a design limitation. We will continue to track this issue and monitor if other customers are impacted. Please help Vote if you have the same requirement, we will improve our products and services.