Final answer:
To address the error when testing an Entry Event in Journey Builder, the user should select a source data extension with a root relationship to the contact and ensure the contact is above the High Water Mark in the source data extension for successful entry into the journey.
Step-by-step explanation:
A user receiving a message about an error binding data bound member in Journey Builder is likely encountering issues with how the data is structured or related to the contact records. There are a couple of steps that can be taken to ensure contacts enter the interaction successfully:
- Select a source data extension (DE) with a root relationship to the contact. This ensures that there is a direct link between the data you are using and the contact model within Marketing Cloud. Without this link, Journey Builder cannot properly associate the data with the individual contacts.
- Ensure the contact is above the High Water Mark on the source data. The High Water Mark is a system feature that keeps track of the last row processed in the DE, and only new records added above this mark will be considered for entry into the journey.
It's important not only to import new subscribers to the All Subscribers table but also to ensure that the data extension used in Journey Builder has the necessary relationships and that new records are being entered above the High Water Mark. Firing an event in both Automation Studio and the Entry Event may not address the specific binding error and can lead to additional complexities or errors.