--- title: "Connect Returnless to Customer.io - APIANT.ai" description: "When \"Request Created\" fires in Returnless, your agent runs \"Send transactional email\" in Customer.io." canonical: "https://apiant.ai/connect/returnless-to-customer-io" --- # Connect Returnless to Customer.io When **Request Created** fires in [Returnless](https://apiant.ai/connections/returnless), your agent runs **Send transactional email** in [Customer.io](https://apiant.ai/connections/customer-io). Describe the whole flow and it is built, tested on every scenario and kept running. Returnless **2** triggers Returnless **16** actions Customer.io **10** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Returnless and Customer.io to do together? Give your AI client this address. `https://mcp.apiant.ai` One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser. ### Set it up in your client ### Claude Code Run this in the directory you want to work in. `claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### Claude, web and desktop Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Cursor Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Codex and the ChatGPT desktop app Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### Any other MCP client Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) Example flows ## What Returnless can start in Customer.io - When **Request Created** in Returnless then **Send transactional email** in Customer.io - When **Return Created** in Returnless then **Create Anonymous Event** in Customer.io Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships. Everything your agent can do with Returnless and Customer.io ## Triggers and actions 2 triggers · 26 actions - Trigger **Request Created** Triggers when a customer creates a new return request that needs approval. - Trigger **Return Created** Triggers when a new return is created, including a request once it is approved. - Action **Add note** Adds an internal note to a return or return request. - Action **Add Request** Creates a return request in Returnless for items from an existing sales order. - Action **Approve a Request** Approves a return request in Returnless so the customer can send the items back. - Action **Approve a Request Without Shipment** Approves a pending return request without a return shipment, so the customer keeps the items. - Action **Find customers** Returns the customers in your Returnless account that match an email address. - Action **Find products** Returns the products in your Returnless account that match a SKU. - Action **Find Requests** Finds a Request in your Returnless account. - Action **Find Returns** Finds returns (return orders) in Returnless by return number. - Action **Find sales orders** Finds sales orders in Returnless by order number. - Action **Get customer** Returns a single Returnless customer by its id. - Action **Get Request (By Request ID)** Returns a single return request (return order) from Returnless by its ID. - Action **Get Return (By Return ID)** Returns a single return in Returnless, with all of its details, by its return ID. - Action **Get sales order** Returns a single sales order by its ID, including its customer, address and order details. - Action **List return reasons** Returns the return reasons configured in your Returnless account. - Action **Reject Request** Rejects a pending return request in Returnless. - Action **Update return** Changes the status of a return, such as Checked, Approved or Resolved. - Action **Create Anonymous Event** Records an event that isn't tied to a known person yet, such as a page view or an action by a visitor. Include an anonymous id to link the event to a person later. - Action **Create Event** Records an event for a person in Customer.io, which can trigger campaigns or update segments. - Action **Delete person** Deletes a person from your Customer.io workspace, identified by their id, email address or Customer.io id. - Action **Get person** Look up a customer's attributes by customer_id. - Action **List segments** List all manual and data-driven segments in the workspace. - Action **Merge people** Merges a duplicate person into a primary person. The secondary person's attributes and activity move to the primary person, and the secondary person is deleted. - Action **Remove people from segment** Removes people from a manual segment in Customer.io. Data-driven segments can't be changed this way. - Action **Send API-triggered broadcast** Trigger an API-triggered broadcast campaign to send immediately. - Action **Send transactional email** Send a one-off transactional email via a transactional message template. - Action **Suppress person** Deletes a person from your Customer.io workspace and suppresses their identifiers so nobody can be added again with the same id, email or phone. Activity attributed to them is redacted. ## Each app on its own - [ **Returnless** Returnless gives e-commerce businesses a way to get their returns in check.](https://apiant.ai/connections/returnless) - [ **Customer.io** With Customer.io you can send email, SMS, and push based on what people do or don't do in your app.](https://apiant.ai/connections/customer-io) Reviews ## What our customers say ## More from Returnless - [ **Returnless to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/returnless-to-salesforce) - [ **Returnless to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/returnless-to-slack) - [ **Returnless to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/returnless-to-stripe) - [ **Returnless to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/returnless-to-shopify) - [ **Returnless to Trello** Trello is a visual collaboration tool that organizes projects into boards, lists, and cards.](https://apiant.ai/connect/returnless-to-trello) - [ **Returnless to Zoom** Zoom unifies cloud video conferencing, simple online meetings, group messaging, and a software-based...](https://apiant.ai/connect/returnless-to-zoom) ## More into Customer.io - [ **HubSpot to Customer.io** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-customer-io) - [ **Wistia to Customer.io** Wistia makes it easy to host, track, and measure video engagement online.](https://apiant.ai/connect/wistia-to-customer-io) - [ **Salesforce to Customer.io** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-customer-io) - [ **Slack to Customer.io** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/slack-to-customer-io) - [ **Google Sheets to Customer.io** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-customer-io) - [ **Gmail to Customer.io** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-customer-io) Questions ## Returnless and Customer.io, answered ### ### What can start an automation from Returnless? Any of Returnless's 2 triggers in the catalog, including Request Created and Return Created. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in Customer.io when something happens in Returnless? Any of Customer.io's 10 actions, including Create Anonymous Event, Create Event, Send API-triggered broadcast and Send transactional email. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from Customer.io to Returnless? Customer.io has no triggers in the catalog today, so automations start in Returnless. If you need the other direction, ask: your agent reads Customer.io's API documentation and adds it. ### ### Do I have to build a connector for Returnless or Customer.io? No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running. ### ### Can my AI client use Returnless and Customer.io without building an automation? Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both. ### ### What happens when something fails? Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships. ### ### Is there a free plan? Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.