When you add a Proofpoint card to a flow for the first time, you'll be prompted to configure the connection. This will enable you to connect your Proofpoint account, save your account information, and reuse the connection for future Proofpoint flows.
You can create multiple connections and manage them from your Connections page.
To create a new connection from an Event or Action card:
Click New Connection.
Enter a Connection Nickname. This is useful if you plan to create multiple Proofpoint connections to share with your team.
In a separate browser tab, open the TAP dashboard and create a new credential, copying the credential's Service Principal and Secret values. See Generate TAP Service Credentials.
Paste the credential values into the Service Principal and Secret fields.
Click Create. This saves your connection and returns you to your flow.