Send 10-day post-purchase WhatsApp offers with Odoo, OpenAI and Evolution API
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 7 nodes and runs on a schedule (every day at 10:00). Along the way it connects Odoo and OpenAI.
How it runs
Trigger: On a schedule (every day at 10:00).
- Fetch 10-Day Old Invoices (Odoo): get many (custom)
- Retrieve Customer Contact (Odoo): get (custom)
- Process Customers (One by One) (Loop Over Items (Split in Batches)): loops over the items in batches
- Generate AI Message (OpenAI): uses OpenAI
- Send WhatsApp Discount (HTTP Request): calls an HTTP API (POST)
- Wait: waits 1 minutes
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (6)
- Schedule Trigger
n8n-nodes-base.scheduleTrigger - Odoo
n8n-nodes-base.odoo - HTTP Request
n8n-nodes-base.httpRequest - Loop Over Items (Split in Batches)
n8n-nodes-base.splitInBatches - OpenAI
@n8n/n8n-nodes-langchain.openAi - Wait
n8n-nodes-base.wait
From the author
What Problem Does It Solve? Generic, automated retention messages often feel like spam and fail to engage returning customers. Manually tracking which customers ordered exactly 10 days ago to send them tailored offers is extremely time-consuming. Sending bulk…