want to create cascaded choice field.
for example, filed A and filed B.
in filed A, there is option A, B, C
in filed B, there is option A01, A02, B01, B02, C01,C02
when choose A, and filed B, only show A01, A02
when choose B, and field B, only show B01, B02
You can use option groups and program rules to achieve this.
Create option sets as follows:
Option set 1 with options A and B
Option set 2 with Options A01, A02, B01, B02, C01,C02.
Assign to DEs to TEAs accordingly.
Create option groups:
A to consist of A01, A02
B to consist of B01, B02 etc.
Then create program rule variables and program rules e.g to show only the class of As:
Expression: if value (i.e. program_rule_variable) == ‘A’
Action: Hide option group B