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After you click it the same modal that allows you to search for users will show up.
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After you finish working with the plan, make sure to save the changes. At the top of the page, next to the Plan’s name you will see a notification whether there are any Unsaved changes.
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If you see the label, simply click Save Plan. You will also be notified that the changes are not saved in a pop-up when you try to exit the page.
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Other
If you don’t see any results or an error shows up during the search make sure you have sufficient permissions.
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