Error while determining the currency types for PO

Hi,

When running MR11 on PO4534356339 (account maintenance) the following error msg appears:

Error while determining the currency types for 4534356339 00030.

Message no.C+171

Check the configuration.

I have checked all currency settings and found ok. Material ledger is activated for this plant. It looks like there is problem in Item 30 of the Purchase order is having problem.

Best Regards,

MR