Edit' rights tries editing a document from a different device or browser it is grayed out

Hi IBN22​ 

when a user have edit access, he have the same permission on all other devices and browsers with this M365 account.  

You have written: "When a user with confirmed 'Edit' rights tries editing a document from a different device or browser it is grayed out using Edge browser as usually use Chrome."

>> that means, it works on one device? What do you mean with it is grayed out? How it looks greayed out?

• First picture are the permissions on the document (= item-level permission).
• Second one are the site permissions, when a user have item-level permissions or edit on library level, it is ok, he don't need edit permissions on the whole site.
• Third are from a list, but when he can create new documents, it looks good ond library level

Options to check:

• Is the document checked out?
• Do you use a Flow or approvals?
• Ensure that permissions are correct at every level. This is very important when operating SharePoint.

Best, Dave