You want to create a Business Partner Person as a Supplier.
Reproducing the Issue
- Go to the Business Partners work center.
- Select a Business Partner Person.
- Click on 'Create As'.
- See that option 'Supplier' is greyed out.
Current system behaviour does not allow a Business Partner Person to be created as a Supplier. The only options available are 'Contact', 'Account' and 'Service Agent'.
If your requirement is to create the Business Partner as a Supplier, you must use a Business Partner Organization.
Business Partner Data, Business Partner Person, Supplier , KBA , AP-BP-BP , BusinessByDesign: Business Partner , How To