PropelBiz25platform Billing Saa STenantApply CouponAsk a question|Copy page|View as Markdown|More actionsPOSThttps://https/companies/%7Bcompany_uuid%7D/config/billing/subscription/%7Bsubscription_uuid%7D/apply-couponHeaders{{tenant_key_name}}stringOptionalRequestThis endpoint expects a multipart form.promotion_codestringRequiredRequired: Promotion code to apply - string - “SUMMER2026”ResponseSuccessful response