Swap or Add Products to an Appstle Subscription on WhatsApp
Yes. AeroChat works directly with Appstle Subscriptions. It checks the product in your Shopify catalog, tells the subscriber the new price per order, and replaces the variant or adds the product on their Appstle subscription when they confirm.
This recipe handles “can I switch to the chocolate one?” and “can you add a bag of treats?” in chat, through your own Appstle subscriptions. Part of connecting Appstle Subscriptions to WhatsApp and AI chat.
What happens today
Subscribers get bored of one flavor or want to try something new. If changing it means finding the portal, many cancel and buy elsewhere. When they ask your team, someone has to find the subscription, check the new variant and edit the contract in Appstle.
The flow that works
- The subscriber asks to swap a product or add one.
- AeroChat finds their subscription in Appstle and checks the new product and stock in Shopify.
- It tells them the new price per order and what the next order will contain, and asks them to confirm.
- It replaces the variant or adds the product, and reads back the next order.
What it looks like on WhatsApp
Customer: Can I switch my oat milk to the barista version and add a bag of granola? (example)
AeroChat: Yes. Barista Oat Milk is the same price as your current one. Adding Honey Granola makes each order $31.50 instead of $24.00. Your next order on 28 November would be 6 Barista Oat Milk and 1 Honey Granola. Shall I make both changes?
Customer: Yes.
In Appstle: the oat milk variant is replaced with Barista Oat Milk and Honey Granola is added to the subscription.
The recipe
Copy this into AeroChat
When a subscriber asks to change or add a product on their subscription, follow these steps.
- If we do not know their email, ask for the email on their store account.
- Find their subscription in Appstle. If they have more than one, ask which one.
- Find the product they want in our Shopify catalog and check it is in stock. If it is not clear which variant they mean, ask.
- Tell them the new price per order and what their next order will contain.
- After a clear yes, replace the variant or add the product on the subscription in Appstle.
- Read back the contents and date of their next order.
- If they want to add something for the next order only, add it as a one-time product if our settings allow it.
Only offer products that can be sold on subscription. Never change prices or discounts yourself. Reply in the customer’s language.
List the products you allow on subscription in your knowledge base before you paste it.
What to connect
- Your Shopify store. Built in. Install AeroChat from the Shopify App Store and connect your store in the dashboard, so AeroChat knows your products and stock.
- Appstle Subscriptions. In your Appstle admin, go to More, then API Access, and create an API key. Paste it in when AeroChat asks. As of November 2026, your Appstle plan must include API access, and changing products needs a plan with contract price changes, which Appstle’s paid plans chosen today include.
- Your knowledge base. Add which products can be swapped or added, so AeroChat suggests the right ones.
After you paste the recipe, AeroChat builds the workflow as a draft and shows a checklist: connect Appstle Subscriptions, add your knowledge base if the recipe uses one, then switch it on. If it built the connection from Appstle’s public documentation, the checklist asks you to check it once against the current docs.
Using a different system? If it has a public API, it connects to AeroChat the same way: describe what you want, paste in its key, and it runs.
Can’t find your tool? Message us in the chat on this page and we’ll tell you how it connects.
What you still decide
- Which products can be swapped in or added to a subscription.
- Whether one-time add-ons are allowed.
- Your subscription prices and discounts, set in Appstle and Shopify.
The result to expect
Subscribers change what they get instead of canceling, and some add products to their next order. Your team stops editing subscription contracts by hand.
Measure it with your own numbers: swaps and add-ons made in chat, and average subscription order value, for a month before and after.
Next: see every Appstle Subscriptions workflow, including changing the delivery address.
Works on every chat channel
This workflow runs the same way on WhatsApp, Instagram, Facebook Messenger, Telegram, the chat on your store and email, with the same Appstle connection behind it. See what each channel does on the Appstle Subscriptions integration page.
Make your first swap in chat
Install AeroChat, paste the recipe, add your Appstle API key, and ask your own chat to switch a product on your subscription.
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