permission in SharePoint site

Hi hanankhamissy,

yes, you can give different permissions to different users or groups for the lists and documents in a SharePoint site. Here are the steps on how to do this:

For the lists:

1. Go to the list that you want to manage permissions for.
2. Click on the Settings menu.
3. Select Permissions for this list.
4. In the Permission Levels section, select the New button.
5. In the Name field, enter a name for the new permission level.
6. In the Description field, enter a description for the new permission level.
7. In the Permissions section, select the permissions that you want to grant to users who have this permission level.
8. Click on the OK button.
9. In the Users and Groups section, select the Add Users or Groups button.
10. In the Users or Groups to Add field, enter the email addresses or group names of the users or groups that you want to give this permission level to.
11. Click on the OK button.

For the documents:

1. Go to the document library that you want to manage permissions for.
2. Click on the Settings menu.
3. Select Library Settings.
4. In the Permissions and Management section, select Permissions for this document library.
5. In the Permission Levels section, select the New button.
6. In the Name field, enter a name for the new permission level.
7. In the Description field, enter a description for the new permission level.
8. In the Permissions section, select the permissions that you want to grant to users who have this permission level.
9. Click on the OK button.
10. In the Users and Groups section, select the Add Users or Groups button.
11. In the Users or Groups to Add field, enter the email addresses or group names of the users or groups that you want to give this permission level to.
12. Click on the OK button.

Once you have completed these steps, the users or groups that you have assigned the new permission level to will be able to access the lists and documents that you have granted them permission to. The other users in your organization will not be able to access these lists and documents.

Here is an example of how to grant permissions to a large group of employees for a list:

1. Create a new permission level that allows users to view and edit items in the list.
2. Add the large group of employees to the new permission level.
3. Break permissions inheritance for the list.
4. Assign the new permission level to the list.

You can use this article as a reference (guide)
Customize permissions for a SharePoint list or library - Microsoft Support