R12:Payment process request gives error Payment exchange rates missing - rates are entered but not s

R12:Payment process request gives error Payment exchange rates missing - rates are entered but not saved

As the screen shot show, even though the rate is provided, there is still showing same message.

One point here is that, users submit one PPR with newly created template, but it includes three different currency in one ppr, it is acceptable while paying cross currency invoice?

For example, invoice currency is CAD, but payment currency in single PPR contains, EUR,GBP, HKD together.