When changing the currency for a Sales Order and any subdocuments created; any subdocuments will need to be made inactive, then the currency can be changed on the SO, and all subdocuments re-activated.
Additional currencies are an optional add-on. Click here HELLO ZEDONK for more information about the Inventory Module
NOTE you need to start from the last one and go backward.
i.e. inactivate the CN first, the the IN, then the DN, then the PF.
NOTE you need to start from the first one and go forward.
i.e. activate the PF first, the the DN, then the IN, then the CN.