Subscriptions

Preview subscription modification

Changed on Jun 29, 2026

Preview the impact of a mid-cycle subscription modification (inheritance, quantity change, grouped invoicing, trial end, coupon, or tax) without committing changes.

post/subscriptions/{id}/modify/preview

Request

Base URL
https://us.api.flexprice.io/v1
URL
https://us.api.flexprice.io/v1/subscriptions/{id}/modify/preview
Auth
API key in header x-api-key

Path parameters

idstring required

Subscription ID

Request body

Response

Changes

Jun 29, 2026cef2964c102c Revision changes
- warning
  removed the optional property ///// from the response with the status
- warning
  removed the optional property / from the response with the status
- warning
  added the new VOIDED enum value to the //// response property for the response status
- info
  added the new optional request property
- info
  added the new optional request property /
- info
  added the new optional request property /
- info
  added the new optional request property
- info
  added the new optional request property
- info
  added the new coupon enum value to the request property
- info
  added the new tax enum value to the request property
- info
  added the new trial_end enum value to the request property
- info
  added the optional property /////// to the response with the status
- info
  added the optional property ///// to the response with the status
- info
  added the optional property ////// to the response with the status
- info
  added the optional property ////// to the response with the status
- info
  added the optional property //////// to the response with the status
- info
  added the optional property /////// to the response with the status
- info
  added the optional property //////// to the response with the status
- info
  added the optional property ////// to the response with the status
- info
  added the optional property /////// to the response with the status
- info
  added the optional property //////// to the response with the status
- info
  added the optional property ///// to the response with the status
- info
  added the optional property ///// to the response with the status
- info
  added the optional property ///// to the response with the status
- info
  added the optional property ///// to the response with the status
- info
  added the optional property /////// to the response with the status
- info
  added the optional property ///// to the response with the status
- info
  added the optional property /// to the response with the status
- info
  added the optional property /// to the response with the status
- info
  added the optional property //// to the response with the status
- info
  added the optional property /// to the response with the status
- info
  added the optional property //// to the response with the status
- info
  added the optional property // to the response with the status
- info
  added the optional property /// to the response with the status
- info
  added the optional property //// to the response with the status
- info
  added the optional property / to the response with the status
- info
  added the optional property / to the response with the status
May 18, 2026f62d8a5fe7cf Revision changes
- warning
  removed the optional property from the response with the status
- warning
  removed the optional property from the response with the status
- warning
  removed the optional property from the response with the status
- warning
  added the new too_many_requests enum value to the response property for the response status
- warning
  added the new too_many_requests enum value to the response property for the response status
- warning
  added the new too_many_requests enum value to the response property for the response status
- info
  added the optional property //// to the response with the status

Operation history (3 revisions)