I would rather that this comment explain what classifies as an auto build (i.e. not initiated by a user)

I don't understand why you're passing inreceiverID here. Can you elaborate pls?

Think about how an operator might debug with these logs; how would they know that this is related to sending notifications?

Try think of log lines as communication. You're communicating with an operator who is a) possibly not familiar with the product or less experienced, and b) trying to debug an issue, possibly under stress. Vague log lines are almost as bad as no log lines at all, sometimes worse because they can mislead or distract.

Since you have this logic in multiple places, it might be worth creating a helper method.

Try and group your code into logical blocks, and use whitespace for visual assistance. Think of your code as having the same visual hierarchy that you'd design in your frontends.

For example,isManualBuild is only needed lower down: group them logically.

You've got a whole lot of code below which is doing several things; add a bit of spaces and/or comments to give the reader's "eye" some space to "breathe", and group related concepts/lines together to infer relationships.

What if they're not the template you're expecting?

Your tests should not only prove that something works; it should also prove that itonly works inprecisely the way you're expecting, and any relevant deviation should fail the test.