Which users have access to mark events as conversions?
Users with only edit access to the App+Web property are allowed to mark captured events as conversions.
One key point to note, similar to standard analytics properties access provided at account level is inherited at property level. For instance,if we assign edit access to a particular user at an account level ,then the user inherits the same level of access at the property level.
To add users,navigate to the admin section by clicking on admin icon and then choose account user management or property user management respectively.