it triggers fine if you have activity which will trigger it (non-deduction contribution, Roth conversion etc), so it depends what you are trying to do and what you input, if you provide more details someone here may be able to help.
for popular topic of Backdoor Roths see steps here
https://ttlc.intuit.com/turbotax-support/en-us/help-article/retirement-benefits/enter-backdoor-roth-...
