Table and customer are entered

I want to check if entities table & customer are always entered. Can’t find the correct syntax for the rule. Can someone help me?

Kind of confused on what your asking. How do you want to check this… can you give an example of what your trying to do?

Do you want to check it or do you want to force it to make those selections?

when the ticket is closed, i want to check that the customer & table are filled in. When it’s not, the ticket can not be closed

i want the force those selections, so they are not forgotten