I was actually working on something like this earlier this week. I usually find its easier for me to figure things out by reverse engineering pages so if you want to take a look at the XML just let me know.
Basically it creates the opportunity, then passes the newly created opportunity’s Account ID over to the Potential Contact’s ID. When that condition is updated, the model will only display contacts from within that company so that user can link a key contact to their Opportunity. This may not be the exact use case you’re referring to; however, I was able to figure out my issue by taking the advice from these threads.
https://community.skuid.com/t/populate-a-model-with-rows-from-another-model
https://community.skuid.com/t/use-new-record-id-in-condition-on-another-model
https://community.skuid.com/t/pass-id-to-step-2-in-wizard
Now for my case i was only updating a model with a single row, so it was easy to control all variables. If you’re intending for this to work with model that has multiple rows that may prove more troublesome.
