What determines if an approvable has an ad-hoc shipping address?

How does HasAdhocShipToAddress get set on an approvable line item?

Addresses are only considered ad-hoc if they are created in the SAP Ariba Procurement application by a user manually filling out the address fields, and if the UniqueName of the address starts with AD.

Imported addresses are not considered ad-hoc, so any line that uses imported addresses will have HasAdhocShipToAddress set to false.

Zentrale Beschaffung > Zentrale Administration > Datenreplikation