The integration with 1Form is pretty simple and there's no setup needed. We did the integration a couple of years ago, and the idea is that property managers do not have to re-enter tenant details into Palace if they're selected.
When you create a new tenant for a property, you usually have to enter the tenant details. 1Form provided an API so those details don't have to be re-entered, however the tenant will need to provide their Email Address and Application Code. You are prompted for these two of information when you click the 1Form button.
You can test it out by adding a new tenant, then click the 1Form button, then use the following as an example:
Application Code: 419744
The tenant details will be sucked from the 1Form website, and additional information will go to the extended details area.