The “5-App Rule” in n8n Workflows to make the workflow reliable and working long time

Tips & Tricks
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The “5-App Rule” in n8n Workflows

I’ve noticed something interesting (and painful) when building bigger workflows in n8n.

:backhand_index_pointing_right: Up to 4 apps, everything runs smoothly.
:backhand_index_pointing_right: But once you cross 5+ apps, things start to get tricky — debugging takes longer, errors multiply, and small changes ripple in unexpected ways.

I’ve started calling this the 5-App Rule:

  • Simple workflows = smooth sailing

  • 5+ apps = potential debugging nightmare

Curious if others here have run into the same pattern?

  • Do you find workflows breaking more often after 5 integrations?

  • Any strategies you use to keep them stable beyond that point?

Would love to hear tips, best practices, or even just war stories from the community.