> ## Documentation Index > Fetch the complete documentation index at: https://docs.hiveku.com/llms.txt > Use this file to discover all available pages before exploring further. # Send Information to Another App from a Workflow > Add an API Call step that sends a form's details to another app's web address, test it without sending anything, and switch it on Many apps can take in information from other tools at a web address: an order system, a mailing list tool such as Mailchimp, a notes app such as Notion, or an automation tool such as Zapier. An **API Call** step in a workflow sends details from Hiveku to that address each time something happens. This guide builds a Northwind workflow that sends every Wholesale Form enquiry to an order system. The order system's address here is a made-up example.com one, and the workflow stays switched off. > [!NOTE] > > Before you start, find the web address the other app gives you for receiving information, and what it expects to be sent. Apps list this in their developer or API settings, often under a name like webhook or endpoint. ## Start the workflow when the form is sent **1. Create a blank workflow** Click **Workflows** in the left rail, then **New Workflow**. Type a name, such as Send wholesale enquiries to our order system, and click **Create Blank Workflow**. It starts switched off. **2. Add the Form Submitted trigger** Click the gear at the top right, then **Browse All Nodes**. Search for "form submitted", click **Form Submitted**, and under **Forms** tick the form that should start it. ## Add the API Call step **1. Find API Call** Click the gear again, then **Browse All Nodes**. Search for "api call" and click **API Call**. ![Add Node with api call typed in the search box, outlined, 1 result, and API Call under HTTP, outlined](https://mintcdn.com/locusdigital/eDE3CBYUsMU-On4r/images/how-tos/workflows/sa-01-library-closeup.webp?fit=max\&auto=format\&n=eDE3CBYUsMU-On4r\&q=85\&s=2c35db5a72e3734671059a94697ada74) The API Call step **2. Connect it** Drag from the small dot on the right edge of **Form Submitted** to the dot on the left edge of **API Call**, so it runs after the form arrives. **3. Set the address and method** Click **API Call** to open its settings. Paste the other app's address into **URL**. Under **Method**, pick what the app asks for: **POST** sends new information, and is the usual one. ![API Call settings: URL https://orders.example.com/api/wholesale-leads, outlined, and Method POST, outlined](https://mintcdn.com/locusdigital/eDE3CBYUsMU-On4r/images/how-tos/workflows/sa-03-request-closeup.webp?fit=max\&auto=format\&n=eDE3CBYUsMU-On4r\&q=85\&s=e38d2be8a303c7518eebcf98953dba97) Where it sends, and how **4. Write what it sends** Under **Body**, type the details in the format the app expects, usually JSON. Values in double curly braces are filled in from the form each time: `{{trigger.contact.email}}` is the visitor's email address, and `{{trigger.submissionId}}` is the submission's own ID. ![Body: email set to the trigger contact email, form set to Wholesale Form, and submission\_id set to the trigger submission ID, outlined](https://mintcdn.com/locusdigital/eDE3CBYUsMU-On4r/images/how-tos/workflows/sa-04-body-closeup.webp?fit=max\&auto=format\&n=eDE3CBYUsMU-On4r\&q=85\&s=a03a53b575425ca4cba14969b2ce61f4) The details it sends If the app needs a key, keep it as a workflow variable (see [Keep API Keys and Settings for Your Workflows](/how-tos/workflows/store-keys-for-workflows.md)) and add it under **Headers**, for example `{"Authorization": "Bearer {{env.ORDER_SYSTEM_KEY}}"}`. Click **Save Workflow**. ## Test it without sending anything **1. Pick a submission and click Test Run** Click **Form Submitted**, then its **Input** tab, and click a recent submission under **Test sample**. Then click **Test Run** above the canvas. Both steps turn green with **Done**. ![Test completed, 2/2 steps, outlined, and Form Submitted and API Call, POST orders.example.com/api/wholesale-leads, both marked Done, outlined](https://mintcdn.com/locusdigital/eDE3CBYUsMU-On4r/images/how-tos/workflows/sa-02-test-closeup.webp?fit=max\&auto=format\&n=eDE3CBYUsMU-On4r\&q=85\&s=5c2ca0e40f5093f117de0e6a86a842ff) Both steps ran **2. Check what it would have sent** Click **API Call**, then its **Output** tab. **Test run: nothing was sent or saved** confirms the other app wasn't contacted. ![API Call, Done, Output tab: Test run: nothing was sent or saved. The fields below show what this step would have done, outlined](https://mintcdn.com/locusdigital/eDE3CBYUsMU-On4r/images/how-tos/workflows/sa-05-not-sent-closeup.webp?fit=max\&auto=format\&n=eDE3CBYUsMU-On4r\&q=85\&s=5d6d5b2e055167422153bd2fe93529ab) Simulated, not sent Further down, **Merge values** shows what each value in double curly braces became for the submission you picked. ![Last test execution, Simulated, and Merge values: trigger.contact.email resolved to sam.ortega@example.com, and trigger.submissionId resolved to the submission's ID, both in body.value, outlined](https://mintcdn.com/locusdigital/eDE3CBYUsMU-On4r/images/how-tos/workflows/sa-06-values-closeup.webp?fit=max\&auto=format\&n=eDE3CBYUsMU-On4r\&q=85\&s=b298b107cb3f4f54c408e7557f6e2c3c) The values, filled in from the form ## Switch it on When the values look right, click the switch at the top right so it reads **Enabled**. From then on, each new submission of the form is sent to the other app. If the app answers with an error, the run shows it under **Runs**: see [Get Told When a Workflow Fails, and Fix It](/how-tos/workflows/fix-a-failed-run.md). ## Good to know * **The app's answer is passed on.** A real run hands the app's reply to the next step, so a later step can use it, for example an ID the order system gives back. * **Sending the form's files.** **Send the form's uploaded files** sends the files a visitor attached instead of a body. Put a short **Delay** step before the API Call, so the files' virus scan can finish first. * **Getting information in instead?** To start a workflow when another app sends something to Hiveku, see [Start a Workflow from Another App with a Webhook](/how-tos/workflows/receive-a-webhook.md). * **Bringing a list over.** To move contacts from Mailchimp or another tool into Hiveku once, export them as a CSV file and [import them](/how-tos/crm/import-contacts.md). 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