I ran a batch campaign to add leads to an engagement program stream (stream 1). The campaign says it has 2297 members (as I expected and none were marked as blocked from emails). However, the engagement campaign says there are only 1820 members.
What is the reason for the discrepancy?
Are there duplicates in your database? One thing you can do is investigate the activity within the batch campaign to see if that can paint a picture for you.