Is there a way to add suspended functions in processing Queue (or similar). I have use case where I am getting different callbacks that updates same entity in database. Instead of execute suspended functions async, I want to execute them in same order that callback was received. Is there a way to do it?

Sounds like you could make a

Channel<suspend () -> Unit>(UNLIMITED)

and launch a coroutine to read from the channel and invoke the functions one-at-a-time.

You can have look at this.. https://thiyagu06.github.io/reactive-sqs-consumer/.