SharePoint gives us the following Permissions Level by default.
Has Full Control
Can view, add, update, delete, approve, and customize
|Can view, add, update, and delete list items and documents|
|Can view pages and list items and download documents|
|Can view specific lists, document libraries, list items, folders, or documents when given permissions|
Can view pages, list items, and documents. Document types with server-side file handlers can be viewed in the browser but not downloaded
Suppose we have a requirement like we need to give the Permissions in such a way that a user can add and edit the item but will not be able to delete the Item in a list/Document Library or any other requirement which can not be fulfilled by using the default Permission Level.
In such scenario we can create a Custom Permission Level in which we can specify which permission set it should contain.
In this article we will see how to create a Custom Permission Level.
Step 1: Click on Site Permissions under Site Actions Menu.
Step 2: Click on Permission Level as shown in the below figure.
Step 3: Click on Add a Permission Level
Step 4: Select the appropriate ‘Permission Set’ by checking the checkboxes and click on Create Button.
Custom Permission Level has been created.
Now use this Custom Permission Level as per your requirement.