I am currently rebuilding a site's analytics code from scratch and for link tracking, the current implementation relies on CSS selectors with data- attributes. I've used this method in the past, but this makes me reliant on front-end changes, and could be liable to break during any new release. In the past, I've also used custom events passed to me through the front-end, but then that also makes the Launch implementation even more reliant on front-end releases (but less likely to break), thereby...

I am migrating our implementation from DTM to Launch and I chose the "Manage the Library for me" option and when I load the page I am seeing rules fire, but then I am receiving this error message: [Adobe Analytics] Cannot set variables: Error: Cannot find the global variable name: "s".

I have migrated properties from DTM to Launch, and when doing so, I always have a host for each environment. When I create a new property and have it hosted by Adobe, do I also need to create a host for each environment?