Hi @Ning,

Thanks for sharing this with us.

Keep in mind, since you have a flow set-up to check “on a person’s birthday” users will only get queued-up for this flow 24 hours before that date. So first, I’d double-check that you indeed have profiles that would qualify to get queued-up for the flow based on their birthday being within the next 24 hours. Also, keep in mind that the flow will only queue recipients from the time the flow email is set to live or manual mode. If you recently updated the flow email status, I’d revisit the “waiting” tab, you should see recipients with birthdays within the next day being queued-up.

For more information, I recommend reviewing How Date-Based Flows Queue Recipients.

You may also be interested in our best practices guide on creating birthday flow emails.

I hope that’s helpful and thanks for being a community member.