THIS ARTICLE WILL HELP YOU:
Import Goals from GA
Convert Experiments allows you to get started fast by letting you import existing goals from Google Analytics. This import helps you get started but since it's not an api integration you do need to check the imported goals before you assume that they work well. Here is a checklist to import and set up Google Analytics goals.
Select the right Google Analytics Goals
Go to your goals overview in the tab menu on top.
On the right top you find the green icon with "New Goal" and select the Import from your GA:
You have to give Convert the authorization to look into your Google Analytics account and select the goals. If it is prompted to you accept the offline access.
Select the correct project on the left and select the Page URL, Time on page, Number of pages visited goals (event based goals cannot be imported at this moment).
To verify if the import was successful, please open the imported goals by editing them.
You see in this example the import went well, but this goal will not work. We are monitoring a full URL, but the import only took part of the URL. We need to change "Matches Exactly" to "Contains".
When you change and save this, the goal is ready to be tracked (please make sure the project code is installed).