@Donald PERKINS Welcome to Microsoft Q & A community Forum. I understand that you are trying to move application insights from one subscription to another subscription.
- You can move Classic Application Insights from one subscription to another subscription without migrating it to Log Analytics workspace. To do so, you can open the application insights resource -> click on move hyperlink which beside subscription property in Overview pane as shown in below
Then select the subscription and resource group you want to move your resource.
2 . You can move application insights resource directly or you can migrate it to Log Analytics workspace and move it. The move process is same as mentioned in previous step.
Note : Classic Application Insights is being retired on 29 February,2024. It is recommended to create workspace-based application insights.