Help with Custom Constrain

V5 Question
1

I need some help with this custom constraint that is not working for me at the moment, the rule need to take action when there is no orders in the ticket, so what should I put as custom constraint?(What I have now is not working), thank you in advance.

2

Depending on what you want, you could use something like:

Rule Constraint:
[=TN('{ORDER COUNT}')] Equals 0

… or …

Action Constraint:
[=TN('{ORDER COUNT}')]==0

You should explain more accurately what it is you are trying to achieve.

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