One trigger doing a job two ways is one too many

If two different triggers can start the exact same workflow for the exact same reason, one of them is unnecessary and probably causing quiet duplicate runs you haven't noticed yet. Every workflow should have exactly one clean way in.

This often happens by accident, as a business grows and adds a new form, a new inbox, or a new spreadsheet that overlaps with an older one nobody retired. I've traced more than one confusing duplicate straight back to this. Each addition feels harmless, but together they create a workflow that fires twice for the same event, sending duplicate messages or creating duplicate records. The fix is to pick one tool and point everything else into it before the workflow even sees the event.

A little housekeeping here prevents a lot of confused troubleshooting down the road.

Try this today: check whether any of your workflows can currently be triggered from more than one place, and if so, close all but one path.