core + attic (Attic Area): these terms have been either deprecated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

paymentMethodId

Canonical URL: http://schema.org/paymentMethodId

Thing > Property > paymentMethodId

An identifier for the method of payment used (e.g. the last 4 digits of the credit card).
Values expected to be one of these types
Text
Used on these types
Invoice
Order

Schema Version 3.3