I have a journey builder which sends a welcome email after a contact is created in salesforce. Here is the flow
Salesforce Data Event==>Send Email
But the jurney builder fails at Send Email step with below error.
A subscriber error occurred invoking triggered send. StatusMessage: Unable to queue Triggered Send request. There are no valid subscribers.ErrorCode: 180008 SubscriberFailureDescription: Error Code:10 - The subscriber is missing required attribute value for First Name
Tried few things but could not succeed. Can you please provide some insight?