SharePoint custom permission based on specific Organization Unit in the AD - sharepoint

Am pretty new to SharePoint, am working on creating a custom permission that I can deploy I sharepoint. I was hoping to create a custom permission that will read Organization Unit inside the active directory and if the user does not belong to a specific organization unit he will be prompted with access denied.
Is there a tutorial to do such a thing? or instructions as of where to start from?

follow the Below URL
Security Programming in SharePoint 2007

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Permissions for Azure app using Microsoft Graph to read SharePoint Online

This seems like a simple question but I'm struggling to find an answer anywhere. Help! ;-)
I'm trying to use Microsoft Graph to read SharePoint lists/libraries in a SharePoint site, however this is just for one site (for our department) amongst many on our SharePoint online. I've registered an Azure AD app (with secret etc...) and requested 'application' permissions for the Microsoft Graph ('Create, edit, and delete items and lists in all site collections') and its saying 'admin consent required' is 'yes' and its currently flagged as 'not granted for *****'.
My boss is now asking - with a worried tone ;-)
will this mean the app can basically read/write/delete on all sites in
the organisations SharePoint (not just our site) if our IT department
'consent'?
I said I don't know actually... I guess I'm not entirely clear on which permissions this is for, is it just to call the Microsoft Graph API or is it for this app to access SharePoint itself? I've searched for answers to this but I'm struggling to find anywhere that says anything about giving your app permissions in SharePoint, it all seems to be about getting permissions for the Microsoft Graph to access SharePoint.
I just want the app to have permissions to read/write lists/files in this one SharePoint site, not any others (we have loads of sites for other departments). I feel like we should be adding permissions for this app (its service principal?) somewhere on the SharePoint site we want to access, but what permissions do I need to setup and where so this app can only access this one site?
Azure AD app registration now allows for granular access to SharePoint site collection, there is a new option Sites.Selected under Azure AD App Registration - Request API Permissions - refer to https://developer.microsoft.com/en-us/graph/blogs/controlling-app-access-on-specific-sharepoint-site-collections/
Unfortunately, this feature is still missing. It is not possible to limit the permissions to only one SharePoint site. It's either access to all SharePoint sites in the organisation or none. Check out the user vote for more information: here. Microsoft is still working on providing a way to limit the access to specific resources.

Grant Permission to external user in azure active directory to access sharepoint site

I have developed a logic app, which receives a post request with JSON Object and I create external user in azure active directory. Till here everything is fine. Now I want to grant permission to newly created user to access our sharepoint site. There is a solution using Plumsail action connector but I do not want to use it. I want to achieve this using microsoft graph api.
Can you help me to achieve this?
Best way I think is adding the user to a group (with the AD connector) or using dynamic group to pick up the user. Then you can have sharepoint license connected to the group and have sharepoint access on the group.

How can I create a new Role in SharePoint 2013?

I am trying to create a role in SharePoint 2013 but I am unable to find any kind of option to create a new role. I don't want to create group. I know there is difference between role and group. I have created roles and groups using SharePoint 2013 client library code, but now I want to create role manually in SharePoint 2013.
I am not sure if I understand this correctly but I am suggesting you a few things:
Supposing that you have access to the site permissions, you could navigate to Site Settings -> Site permissions (under Users and Permissions). In the ribbon you find the Permission Levels button and once you click it you will go to a page where you can add new permission levels or maybe edit/delete the existing ones.
When you create/edit a permission level, you can choose what kind of permission that permission level will have, for instance, "Add/Delete Items Items" for list permissions or "Create sub-sites/groups"
I would refer you to this link Use SharePoint permission management to create various roles in an app for SharePoint

add user to an organizational unit in active directory

I'm gonna build a webpart for creating user in active directory.
i want to add created user to an organizational unit if the organizational unit exist.
how i can do that?
Basically, you need to bind to the OU in question, and then call .Children.Add() to add the new user to that OU.
See this MSDN documentation for details:
Adding Directory Objects shows how to add a group to the Users container - you should be able to convert that to your needs
Quick List of C# Directory Services samples
User Management with Active Directory shows sample code for exactly what you're looking for: adding a user to an organizational unit
How to do almost anything in Active Directory using C# is a great general resource showing how to do common tasks in Active Directory using C# and .NET

How do I create a new user in AD from SharePoint

I am looking to have a SharePoint Extranet Portal setup for my "partner" clients. I want to make a site admin for each extranet site for each client. This admin would be able to add new users to the portal AND have that user be created in AD (Active Directory).
Has anyone done this or know of a good tool that would provide me that ability to do this?
I would suggest using ADAM (Acitve Directory Application Mode). This way you separate your own company users. Seeing as it's AD, you can keep your existing authentication provider.
See this tool (costs money though) for creating AD users.
Bamboo Solutions User Account Setup Web Part.
DO a Google search for SharePoint and ADAM for more information.
I found these articles on creating users into AD. You could use SmartPart and build your own web part and manage the security implications of this.
Here they are:
http://www.dotnetspider.com/resources/1242-Creating-New-User-Account-Active-Directory-usi.aspx
http://www.codeproject.com/KB/system/everythingInAD.aspx
Thanks!

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