PlanUpdateInput

Fields you leave out keep their values.

attributes
Type:

Replaces the plan's whole price list. Each must be an attribute of the plan's product.

Properties: 3
externalId
Type: string | null

Must be unique across your plans. Null clears it.
isDefault
Type: boolean

true makes this the product's default plan (the previous default loses the flag); false removes the flag.
name
Type: string
status
Type: "active" or "archived"enum

archived archives the plan (an archived plan keeps its first archivedAt); active restores it.
supportedCurrencies
Type: array of string | null
min length:
3
max length:
3

ISO 4217 codes, stored upper-cased; the first becomes the main currency. Null clears the list: the plan keeps its main currency.