> ## Documentation Index
> Fetch the complete documentation index at: https://docs.refold.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# Building a HubSpot integration
> This tutorial will give an example of how to create a HubSpot integration that syncs contacts from your app to your Linked account's HubSpot account.
## Pre-requisites
1. HubSpot App is enabled in Refold.
2. HubSpot OAuth app credentials added to Refold. Refer [here](https://docs.gocobalt.io/resources/integration-providers/hubspot#acquiring-hubspot-client-credentials).
3. Trigger created in Refold. Refer [here](https://docs.gocobalt.io/guides/workflow/triggers).
4. Linked Account available. Refer [here](https://docs.gocobalt.io/guides/platform/linked-account).
## Building a Workflow
#### 1. Create Workflow in app
* Go to your [`Apps catalog`](https://app.gocobalt.io/apps) in **Refold** > Search for `HubSpot` > `Workflows` > `Add Workflow` > Choose `Manually` > Give it a name and click on `Add Workflow`.
#### 2. Adding the Trigger
To add a trigger for a Workflow in Refold, you need to select details about the Trigger like the Type and which trigger to be implemented.
To add a Trigger, follow these steps:
* Click on the **Start node** to add a trigger.
* In the right side, select the **Type** and the **Trigger** and click on the `Add Trigger` button.
For this Workflow, we have created an Event `Contact Create` which contains the payload like the first name, last name, email etc. about the event sent by you to HubSpot.
#### 3. Adding the HubSpot Action
* From `Actions`, add a HubSpot node to the workflow.
* Click on the node and select an Action from the `Choose an Action` dropdown menu and click on `Save`.
Before clicking on `Save`, make sure that you have entered data for all the mandatory fields whichever required.
* Connect the two nodes by clicking on `+` button on the `Start` node and dragging the arrow to the **HubSpot** node.
#### 4. Publishing the Workflow
* To publish the workflow, click on the `Publish` button in the top, **Select Environments** of the Workflow and click on `Publish`.
## Enabling the Workflow
To enable a workflow, end user or a Linked Account needs to Toggle On the Workflow after connecting with the application.
* Navigate to the Linked Account in which the Workflow needs to be enabled by getting its' **Hosted URL**.
* Go to the Hosted URL and select **HubSpot** from `Manage your Integrations` list.
* Click on the `Connect` button, review the permissions and allow them for a successful connection.
* After a successful connection, you can see the `Configure` section in the HubSpot Application page.
* Enable the Workflow **Sync Contacts** by turning the **toggle On** and click on `Save`.
## Fire an App Event
Lastly, we'll fire an App Event whenever a contact is created in your app by using the Workflow.
* Navigate to `Try API` in **Refold**.
* Choose the **Linked Account** created to test the workflow, select the **Event** and `HubSpot` as the **Application**.
* Click on the `Fire Event` button in the top right.
* You can check the status of the event by navigating to `Logs` > `Events` in **Refold**.
Congratulations! We have successfully built a HubSpot integration that syncs new contacts from your app to the Linked Account's HubSpot.