Conditional logic or webhooks

I want to complete the following.

  • field1= list choice 9/12/22
  • field2= list choice 12 choices
  • field3= number based on combination of field 1 and field 2.
  • field4=calculation based on field3

I know I can fill field3 number with conditional logic but then:

  1. I need to make 3*12=36 field3 items
  2. the field 4 calculation will be very complicated

So I think I have to go with dynamic hooks? I cannot found step by step tutorial to do this?

I’m not sure I understand your requirements. Is field3 a calculation field or something else?

already found the merge field:value calculation for step 3