Harvest OAuth 2.0 connector profile – StackOne setup guide

Register an OAuth 2.0 Application

Create an OAuth application in the Harvest Developers portal to obtain the Client ID and Client Secret.

Create a new OAuth2 application

Click Create new OAuth2 application and fill in the required fields.

Enter a Name for your application (e.g., StackOne Integration).
Set the Redirect URL to: https://api.stackone.com/connect/oauth2/harvest/callback
Select I want to access my own Harvest account or I want to access multiple Harvest accounts based on your use case.
Under Products, select Harvest. Per-action API access is determined by the connected user’s role in the Harvest workspace.
Click Create application.

Copy your Client ID and Client Secret

After saving, the new application page displays both credentials.

Copy the Client ID value.
Copy the Client Secret value (it is shown only on creation — regenerate later if lost).
Store both values securely for use later.

To create the Connector Profile in StackOne for Harvest:

Navigate to Connector Profiles

Create New Connector Profile

Click + Connector Profile
Search for and select Harvest
Select Type as OAuth 2.0
Fill out the fields using details retrieved from your provider:
- Client ID
- Client Secret
(Optional) Select Actions to be enabled for this Connector Profile
Click Create profile

Congratulations! The new Connector Profile will now show up in your project ready to be used. You can now continue to Link Accounts for Harvest.