cordellb6767183 Please do check out the resources available at the Launch documentation page specifically Upgrade preparation guide .
These are some blogs that have some useful tips and tricks.
The Migration Process from Adobe DTM to Adobe Launch | Adobe Blog .
https://medium.com/launch-by-adobe/migrating-from-dtm-to-launch-57548251a86d
Also only the ECID, Adobe Analytics, and Google Universal Analytics tools will be converted over into the matching Launch extensions with matching configurations .
The following DTM tools installed on your property are not copied to Launch extensions and will have to be set up manually.
- Adobe Audience Manager
- Adobe Media Optimizer
- Adobe Target
- AEM ContextHub
- Nielsen
- Google Analytics
Hope this helps.