The Yoco Web POS integration relies on an authentication between SalonBridge and your Yoco account. It is unlikely that you will have to re-authenticate the integration, but in the event that no payments are captured for some time, or Yoco requires you to re-authenticate SalonBridge, you will be prompted to re-authenticate from the SalonBridge console.
From the SalonBridge console, click on 'My Business->Integrations':
Click on the 'Re-Authenticate' button under the Yoco Web POS integration:
If your account is still authenticated, you will be notified that no further authentication is required. If your account requires you to re-authenticate, you will be redirected to Yoco for the authentication process, as you did when you first enabled the integration.