> For the complete documentation index, see [llms.txt](https://docs.webtonative.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.webtonative.com/website-plugins/bubble.io/in-app-purchase/get-iap-canceled-subscription-list-ios.md).
# IAP Canceled Subscription Guide (iOS)
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**Overview**
This guide walks you through setting up a Bubble.io workflow to fetch canceled In-App Purchase (IAP) subscription data from an iOS app using the "webtonative" plugin. The process triggers when a user interacts with a button (e.g., "Get IAP Canceled Sub"), initiates a search for canceled subscriptions, and retrieves the results for display or further use. This is ideal for managing subscription statuses in your app.
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#### Prerequisites
* **Bubble.io Account**: An active Bubble.io account with a project.
* **webtonative Plugin**: Installed in your Bubble editor (available under Plugins).
* **Apple Developer Account**: Required for iOS testing via TestFlight (optional for initial setup).
* **Basic Workflow Knowledge**: Familiarity with Bubble’s workflow editor.
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**Step 1: Set Up the Trigger**
* **Purpose**: Define the event that starts the process (e.g., a button click).
* **Instructions**:
1. Open your Bubble editor and navigate to the page where you want this feature.
2. You can add a button element (e.g., name it "Button Get IAP Canceled Sub") via the "Design" tab.
3. Select the button, then click "Start/Edit Workflow" to open the workflow editor.
4. In the "When" section, choose "When the Button Get IAP Canceled Sub is clicked."
* This links the workflow to the button click action.
**Step 2: Initialize the Canceled Subscriptions Check**
* **Purpose**: Begin the process of querying canceled subscriptions using the webtonative plugin.
* **Instructions**:
1. Click "Click here to add an event..." below the trigger in the workflow editor.
2. Select "Plugins" > "webtonative - Init IAP Canceled Subscriptions (iOS)" from the dropdown.
* This action prepares the iOS app to start retrieving canceled subscription data.
3. Leave the default settings (no parameters needed unless specified by the plugin).
**Step 3: Schedule a Delayed Check**
* **Purpose**: Allow a brief delay (1 second) to ensure the initialization completes before fetching results.
* **Instructions**:
1. After the "Init IAP Canceled Subscriptions" action, click "Click here to add an action..."
2. Choose "Schedule API Workflow" > "Schedule get IAP Canceled Subs after 1 second."
* Set the custom event to "get IAP Canceled Subs."
* This delays the next step to give the system time to process.
**Step 4: Define the Custom Event to Get Canceled Subscriptions**
* **Purpose**: Execute the action to retrieve the canceled subscription data.
* **Instructions**:
1. In the workflow editor, locate or create the "get IAP Canceled Subs" custom event.
2. Click "Click here to add an event..." and select "Plugins" > "webtonative - Get IAP Canceled Subs (iOS)."
* This fetches the list of canceled subscriptions.
3. Configure the action:
* **Secret**: Enter your App Store shared secret (e.g., vs234bd34f404fd31bd2ac22)
* **Is Test**: Set to "Yes" for testing purposes.
* **Receipt Data**: Check this option to include subscription receipt details.
**Step 5: Retrieve Transaction Data**
* **Purpose**: Extract and inspect the transaction data associated with canceled subscriptions (for testing or debugging).
* **Instructions**:
1. After the "Get IAP Canceled Subs" action, click "Click here to add an action..."
2. Select "Plugins" > "webtonative - Grab IAP Transaction Data (only for checking)."
* This pulls detailed transaction data, such as whether a subscription was already purchased or canceled.
3. The result will be available as "Result of step 1 (webtonative - Get...)" with fields like "success" and "message."
**Step 6: Display Results for Testing**
* **Purpose**: Show the retrieved data as an alert to verify the workflow works (optional).
* **Instructions**:
1. After the "Grab IAP Transaction Data" action, click "Click here to add an action..."
2. Choose "Show an alert" or "Display data."
* Set the content to "Result of step 1 (webtonative - Get...)" > "message" to display the result (e.g., "Is Already Purchased" or "success").
3. Set "Only when" to "Click" to trigger on the button press.
* Note: This step is for testing only. In a live app, you might save the data to a database or display it in a list.
**Note**: Whenever a user triggers the action to get canceled subscriptions, it will always provide a list of all canceled subscriptions.
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#### Full Workflow Summary
* **Trigger**: When "Button Get IAP Canceled Sub" is clicked.
* **Steps**:
1. Initialize the canceled subscriptions check with "webtonative - Init IAP Canceled Subscriptions."
2. Schedule "get IAP Canceled Subs" to run after 1 second.
3. Fetch canceled subscriptions with "webtonative - Get IAP Canceled Subs."
4. Grab transaction data with "webtonative - Grab IAP Transaction Data."
5. (Optional) Show the result as an alert for testing.
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#### Testing and Deployment
* **Testing**:
* Use the "Is Test" option and deploy to TestFlight for iOS testing.
* Verify that the alert displays the expected data (e.g., canceled subscription details).
* **Production**:
* Replace the alert with actions to save data to your Bubble database (e.g., create a "Canceled Subs" data type).
* Remove testing flags and ensure the plugin is configured for live use.
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#### Troubleshooting
* **No Data Returned**: Check the "Secret" key and ensure the webtonative plugin is properly set up.
* **Errors**: Review the plugin documentation or the Bubble community for support.
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