Paychex

Paychex connects with OAuth 2.0 client credentials: the API key and secret of an application in Paychex Flex.

Install the Paychex integration

Install Paychex from Available integrations in each environment you connect accounts from.

Create API credentials

1. In Paychex Flex, go to Company Settings → Connected Applications.
2. Create an application. Paychex Flex generates an API key and secret for it.
3. Copy both. Treat the secret like a password.

See Paychex's Authentication docs.

Connect a Paychex account

1. Click Connect Account.

2. Enter a Tenant ID. This can be any ID you choose. Click Get connection link.

3. Open the generated link. You can also share it with your customer so they connect their own Paychex account.

4. Select Paychex.

5. Fill in the form and click Connect:

   Field	Required	What to enter
   Client ID	Yes	The application's API key.
   Client Secret	Yes	The application's secret.

6. Close the tab when you see the connection successful message. The new account appears under Integrated Accounts. Click its Account ID to see its details and make API calls.