There is an official smartthings integration that works with some Ring models, but not all of them.
You have not yet told us what specific models you have, so we have not been able to help you.
But the short answer is that if you have one of the models which is officially supported, then you don’t have to use any of the fields that you mentioned in your first post. You will select the model, then sign into your Ring account, and that device will be automatically added to your smartthings account.
The exact steps are available in the article in the official supportbase. (The steps are the same whether it is a Ring camera or a Ring doorbell, but the integration only works for the models on the official compatibility list.)
(The steps are a little bit different depending on the version of the smartthings mobile app, but you have not yet told us which one you have.)
You can see the list of supported models on the official compatibility list. Note that it is only those specific models. For example, if it lists the hardwired version of a camera but not the battery version, then the battery version is not supported.
This forum is just a community of customers helping other customers.
If you would like to get more support or if you would like to ask why specific models are not included in the official integration, you’ll need to get in touch with either Ring support or SmartThings support.