SAP Message RW610 - The +/- sign in the currency field is wrong (see long text)

Diagnosis
A value was transferred in the currency table in line &V1& withcurrency type &V2& which has a different +/- sign compared to the othercurrencies. Since the debit/credit indicator is determined from the +/-sign, the +/- sign must be unique for each line item.

System Response
The document cannot be posted.

Procedure
Transfer the different currencies with the same +/- sign.