Custom Attributes Validation Approach

gyanus

HI

I found validation constraint feature in composer, i had gone through guide and dont find much help on this.

i want to validate my custom attributes like only alphabets are entered / only numeric values are entered / no special charecters are entered?

can i achieve it through option given in composer UI? if so can any one post how to do that? it will be helpfull for me.

if not i have to write this in my TBO, am i right here or any other approach is there?

Thanks in Advance

Regards

Swarup