Problem
A membership service item—such as a Sale Task, Renewal Task, or Billing Task—appears under a category in Mobile Preview when it should not be there.
Solution
Unwanted membership services appear because they exist in Pricebook > Services. Deactivate them to remove them from Mobile Preview.
Locate and deactivate the membership service
Go to the navigation bar and click Pricebook.
In the side panel, go to Services.
Find the membership service item.
Tip: Check if you have any filters active that might hide services.
Click Actions
then select Deactivate. 
Click Mobile View and confirm that the correct membership service appears in the category.
