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I got this error all the time. How can i do it correctly?
I'm using set variable with Espression (not using String)
@tony2n91 this happend bacause the type of your variables is "string", so you have to change it to the type "number"
Number([[A1]]) + Number([[A2]])
How to correctly report about errors
Actualy [[AGE]] = Birthday year . i need to calculate his/her age , So Was trying to calculate it.