Below are steps to configure the flow
to send the birthday email from SharePoint List.
1.Configure the Recurrence like in
below screen
2.Get items from SharePoint List
3.Use foreach activity on every item
to check the condition and send the email
4.Configure Condition Activity like
below code
Left Condition
if(equals(items('Apply_to_each')?['DateOfBirth'],null),'',formatDateTime(items('Apply_to_each')?['DateOfBirth'], 'MM/dd'))
is equal to
Right Condition
formatDateTime(utcNow(), 'MM/dd')
4.Send Email if condition is true