{"product_id":"supabase-subscription-renewal-automation-gmail-payment-api-for-n8n","title":"Supabase Subscription Renewal Automation (Gmail + Payment API) for n8n","description":"\u003ch3\u003eAutomate Supabase subscription renewals—daily reminders + payment API updates via n8n\u003c\/h3\u003e\n\u003cp\u003eThis n8n workflow checks your Supabase \u003cb\u003esubscriptions\u003c\/b\u003e every day, sends renewal reminder and confirmation (or failure) emails through \u003cb\u003eGmail\u003c\/b\u003e, and posts payment identifiers to an external \u003cb\u003eHTTP API\u003c\/b\u003e to update renewal status automatically.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this workflow does\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cb\u003eRuns daily at 09:00\u003c\/b\u003e using an n8n schedule trigger.\u003c\/li\u003e\n  \u003cli\u003eRetrieves the current date\/time and \u003cb\u003efetches all records\u003c\/b\u003e from your Supabase \u003cb\u003esubscriptions\u003c\/b\u003e table.\u003c\/li\u003e\n  \u003cli\u003eFilters to subscriptions where \u003cb\u003estatus = active\u003c\/b\u003e and \u003cb\u003eend_date\u003c\/b\u003e falls between now and the next \u003cb\u003ethree days\u003c\/b\u003e.\u003c\/li\u003e\n  \u003cli\u003eSends a \u003cb\u003erenewal reminder email\u003c\/b\u003e to each subscription owner using \u003cb\u003eGmail\u003c\/b\u003e.\u003c\/li\u003e\n  \u003cli\u003ePosts subscription and payment identifiers to an external \u003cb\u003eHTTP endpoint\u003c\/b\u003e (payment processing step) and treats the response as successful when an \u003cb\u003eid\u003c\/b\u003e is present.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eOn success\u003c\/b\u003e: updates the Supabase subscription record with \u003cb\u003eactive\u003c\/b\u003e status, a new \u003cb\u003estart_date\/end_date\u003c\/b\u003e, and \u003cb\u003elast_payment_date\u003c\/b\u003e, then emails a \u003cb\u003erenewal confirmation\u003c\/b\u003e via Gmail.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eOn failure\u003c\/b\u003e: emails the customer a \u003cb\u003epayment failure notice\u003c\/b\u003e via Gmail.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUse cases\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSaaS operators who want \u003cb\u003ehands-off subscription renewal communication\u003c\/b\u003e for expiring plans.\u003c\/li\u003e\n  \u003cli\u003eAutomation engineers needing a reliable \u003cb\u003eSupabase + Gmail + payment API\u003c\/b\u003e renewal pipeline inside n8n.\u003c\/li\u003e\n  \u003cli\u003eTeams managing renewal windows and wanting both \u003cb\u003ereminders\u003c\/b\u003e and \u003cb\u003epayment outcome emails\u003c\/b\u003e sent automatically.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cb\u003eSupabase\u003c\/b\u003e integration to read\/update the \u003cb\u003esubscriptions\u003c\/b\u003e table.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eGmail\u003c\/b\u003e node for renewal reminder, confirmation, and payment failure emails.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eHTTP Request\u003c\/b\u003e to send identifiers to an external payment processing endpoint and evaluate success by presence of an \u003cb\u003eid\u003c\/b\u003e.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eDate\/Time\u003c\/b\u003e logic to compute the renewal window (next three days).\u003c\/li\u003e\n  \u003cli\u003eControl flow using \u003cb\u003eif\u003c\/b\u003e and \u003cb\u003ecode\u003c\/b\u003e (plus a sticky note for workflow context).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"N8N Commerce","offers":[{"title":"Default Title","offer_id":46008788943027,"sku":"N8N-19487","price":36.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/6279\/6723\/files\/ALL6G4L_MsqagkGlyzEli_8qeze1rB.png?v=1789204472","url":"https:\/\/buyflowscripts.com\/products\/supabase-subscription-renewal-automation-gmail-payment-api-for-n8n","provider":"N8N Commerce","version":"1.0","type":"link"}