SAP - Public Sector - Config for Grantee Sponsor Currency Field

The Grant Sponsor master data derives the Grant Currency in the Grant Master Data.  If the Grant Sponsor master data is created
with a blank in the Grant Currency, and subsequent entries are posted against the grant, SAP will not allow changes to the grant master data.

1. To eliminate this situation, I am requesting that the Grant Currency field within the Sponsor master data default to USD. Does anyone know how to config this so it defaults to USD?
   1. T-Code BP
   2. Change the BP role to Sponsor
   3. Go to Grant Basic Data Tab
   4. Select the Currency Field
      1. Field name WAERS from Table GMSponsor