Structure Attribute (Mandatory) Properties - Outsystems

What is the significance of Mandatory property of attribute of a structure?


I have created a structure

with two attributes MandatoryAttribute(Mandatory) and NotMandtAttribute(Not mandatory)

and in client action I'm assigning the value to only NotMandtAttribute

And it is working fine then what is the significance of the mandatory attribute in the structure?

Hello If you are passing that value in the Screen than pass input widget in the label property 

Here I have Attached the OML as well refer Test Screen

Thanks and Regards,

Akshay Deshpande


Hi ,

Read this document it will help you.

also the attributes take default value based on data type.

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