Is there a way to, when 2 people create a sales order at the same time, to have a unique SO each time? Right now, it's trying to duplicate it, so we end up having a lot of duplicate sales order ids in netsuite

Not following. You should never have a duplicate transaction ID. What is the actual field ID you are referring to that is being duplicated?

Right now they have name override turned on. So when 2 users go to create a new sales order they both get the same Sales Order tranid. The solution I want is to now allow the user to over ride the sales order, but also have an integration be able to set its' own sales order.

Auto-Generated Document Numbers goes over how to prevent that if you must allow override

Yeah, is there a way to prevent it from the UI while allowing integrations to set their own? If I turn off override, it's not allowing users and integrations to set it. Which we need integrations to be able to set it

Can you use 'Warn & Block' or Warn which is just UI?