Hi Swaroop,
As someone who has worked in support before, this link was my best friend.
Out of the issues I had to troubleshoot, some were problems I identified using the information available in this link, while the others were operational questions. Unfortunately, we don't have any documentation for those, haha.
What I strongly recommend is creating a document with operational guidelines and keeping it updated whenever you identify something new.
Additionally, it helps a lot to have a good understanding of the platform so you can recognize what are expected behaviors and what are not. For that, I highly recommend these two trainings:
I hope this helps you.
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Camila Meneghini
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