Hi @jansi rani krishnan ,
The "tiny circle" or "tiny loop":
Runbook monitors Incident for changes and one of the next activities is changing the same Incident that triggered the Runbook.
IR123 gets update (for instance modified Support Group) -> Triggers Runbook -> Runbook is doing changes on IR123 (for instance modifies Urgency) -> IR123 is changed so the Runbook will start over again.
The large or big circle/loop:
Your 3 runbooks with trigger on SNOW or SCSM Incident is changed or modified.
Create IR in SCSM -> Runbook 1 -> Create IR in SNOW -> Runbook 2 -> Modify SCSM IR -> Runbook 1 -> Update in SNOW IR -> ........
Updated IR in SNOW -> Runbook 3 -> Update IR in SCSM -> Runbook 1 -> Modify IR in SNOW -> Runbook 3 -> ........
The only option you have is working with conditions and criterias. This requires a detailed planning of which runbook should do something with which conditions.
Without knowing all the detailed activities and how they are configured and what happens on updated/new created IRs it's almost impossible to help with a detailed answer or solution.
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(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
Regards
Andreas Baumgarten