Constraint does not work1

[wroos]

Hello,
There is NO constraint column at all in your sheet.
The following example might help. There are more in this community to find with search option.

How to constraint a sum of 2 variables with the third variable

Hi @daniel, You could do this as outlined below: In the survey tab of your xlsform: [Image 1] Data entry screen as seen in Enekto: When the conditions are not met [Image 2] Data entry screen as seen in Enekto: When a condition is met [Image 3] Reference xlsform: a7W5vADR84ZL443iRJsFyC (2).xlsx (10.3 KB) Have a great day!