Keep a manual backup path for every automated step
Every automated step should have a manual way to do the same thing, even if it is slower and less convenient. If the automation goes down, you still need a way to get the work done.
This matters because tools break, accounts lock, and internet connections fail at the worst possible moments — usually right when a client is waiting. If the only way to send an invoice, confirm a booking, or reply to a lead is through the automation, then a broken automation means the business stops, not just the process. A manual fallback, even a clunky one, keeps things moving while you fix the real problem. I keep a plain, written manual version of my most important automated step, because I've needed it more than once when the tool itself went down.
Write the manual steps down somewhere everyone on the team can find, not just in your own head.
Try this today: pick your most important automation and write out, in plain steps, exactly how you would do that task by hand if it stopped working right now.