Are you using PBI application to create & manage products ? If so, have you included the ruleset where products & Components are created , in the PUI stack?
Have you added any eligibility criteria to products? if so PUI submission eligibility Q & A should match them.
In case you just ran DCO on PUI application (and followed all app guide steps) and want to run a submission end to end, then you can add PBISampleData ruleset into your application stack. This ruleset holds some sample products that we ship for testing purposes.
Also, ensure that indexing on the rules is done & complete.
Thanks for your reply, product listing is working fine after adding the product ruleset.
We are trying to hold back the assignment with Underwriter when it is routed to Account Owner during proposal review. How can we achieve it, we want underwriter to review, complete the proposal and provide customer response too.