“Do you have a plan in place if your display manufacturer either goes out of business or quits providing certain parts?”
The best plan is to have at least two, possibly three separate, suppliers of important parts in your arsenal. That way, you hedge your bets in case one vendor can’t come through or has gone out of business. You should evaluate how important specific suppliers are to your company. If you determine that losing one would result in catastrophic downtime, then it’s vital you look for back-up vendors. The more you prepare, and plan ahead, the more you remove the possibility of being stranded with nowhere to turn when downtime occurs on your signage network.