Create Extra Option Metafield

API operation: Open the endpoint in Scalar

Use POST /business/{business_id}/extras/{extra_id}/options/{option_id}/metafields to create a metafield on an extra option. The operation is ExtraOptionMetafield.register.

The operation requires administrator or business-manager authentication. The controller verifies the business-extra-option chain, applies manager ownership checks, and binds the metafield to option_id. value_type accepts integer, decimal, boolean, text, or json .

This POST creates a metafield. Dynamic metafield keys may require additional validation. See List extra option metafields for the related collection.