put https://api.loopsubscriptions.com/admin/2023-10/line//attribute
The endpoint is used to completely update the attributes of a line item. This requires sending a full representation of the lineItem
attributes, as it will overwrite the existing data.
The following lineItem attribute keys can not be updated / removed as they are in the reserved state and used for internal tracking.
- bundleId
- _bundleId
- is_one_time
- _loopUpsellId