It's the worst.

Here's what i do:

A quick refresh is always a good first step.

Talk to your team: A quick message saying, "Hey, anyone working on this customer?" can save you a lot of time

Watch out for sublists. Sublists (like items on a sales order) are sensitive, so save often when you're in there.

Review your integrations: Integrations, especially if you're doing something like complex ERP integrations, can cause this error. You must be careful when setting up NetSuite Implementation Partners.