Best answer by aditya_marla
Thanks for sharing your feedback. Are you using the sharing ability on the C360 or directly sharing success plans
You can share a success plan with both users & contacts...but you can do it only one at a time (i.e you need to share a SP with contacts first & then share the same SP with users). Does that help?
Also for a Success Plan to be visible to contacts it need to marked for external visibility (similar to the screenshot below)
Also to make things simple, we have improved the process of sharing success plans in our NXT edition where you can share with users & contacts in a single go
(Documentation Link: https://support.gainsight.com/Gainsight_NXT/Success_Plans/User_Guides/Share_Success_Plan)
Let me know if you need any more details