You manually changed purchase order currency under General tab, but system doesn't convert the price amount automatically even the exchange rate already maintained.
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Reproducing the Issue
Go to Purchase requests and orders work center, Purchase Orders view.
Open purchase order ABC (ABC refers to the purchase order ID), the total amount is 100 USD.
View all and go to General tab, change the currency from USD to EUR.
You expect the system will convert the amount to a new value automatically according to the exchange rate you maintained, but the value does not change and the total amount becomes 100 EUR.
This is the current system behavior. During update of puechase order, automatic currency conversion is not supported, only the currency unit changes will be reflected in header currency.
Please update the value manually.
Purchase Order, Currency Conversion, Automatic Conversion , KBA , AP-POP , Purchase Order Processing , How To