Assign this base plan when creating the company (starts with plan_). Takes precedence over the environment's initial plan and must be provisionable without a payment method.
base_plan_price_idstring nullable
The Schematic price to provision for base_plan_id (starts with bilpp_). Required and must be $0 for a billing-linked plan; omit for a plan that is not billing-linked.
idstring nullable
If you know the Schematic ID, you can use that here instead of keys