Customize Sharepoint online List and site page

Question

I have a subsite in Sharepoint Online office 365 derived from my company's main parent site. I have embedded one sharepoint list in SitePage, in that I want vistors to add new list items or update the list item but not delete it via. landing site page, what permission should I need to grant for them. When I grant

• Contribute permission : he got access to edit site page also (which is not allowed)
• Read permission : site page edit access is restricted but along with it the edit permission for list item is also restricted, he couldn't add/edit the list items.

what and how to define relevant permission to user?

Answer 1

Set the permissions from the relevant list settings, if users should only be able to add/edit list items then create a new permission level called Update Only , the default permission levels don't have this type of permission out-of-the-box. Go to Site Settings -> Permission Settings -> Permission Levels then click on Add a permission Level , here's the official MS documentation on how to accomplish that:

Create a permission level

Then for the new permission level set only the permissions users need to add/edit items, usually it will be the following:

1. Add Items - Add items to lists and add documents to document libraries.
2. Edit Items - Edit items in lists, edit documents in document libraries, and customize Web Part Pages in document libraries.
3. View Items - View items in lists and documents in document libraries.
4. View Application Pages - View forms, views, and application pages. Enumerate lists.

Then in the list settings users can be granted the Update Only permission level.