Retrieving Access Request Email from SharePoint Site

The access request feature allows users to request access to site that they do not currently have permission to see. As a site owner, you can configure the feature to send you mail when someone requests access to a site for approval.

use the below code find out the  Access request owner using below JSOM code  

function getAccessRequestOwner() {
    var clientContext = SP.ClientContext.get_current();
    this.oWeb = clientContext.get_web();
    clientContext.load(this.oWeb, 'RequestAccessEmail');

    clientContext.executeQueryAsync(
        Function.createDelegate(this, this.onQuerySucceeded),
        Function.createDelegate(this, this.onQueryFailed)
    );
}

function onQuerySucceeded(sender, args) {
    console.log('RequestAccessEmail: ' + this.oWeb.get_requestAccessEmail());
}
   
function onQueryFailed(sender, args) {
    alert('Request failed. ' + args.get_message() +
        '\n' + args.get_stackTrace());
}


//Call function
getAccessRequestOwner();

SharePoint Online admin role

To help you administer SharePoint Online, you can assign one or more users to the SharePoint Online admin role. For a little background, here are each of the administrator roles available in SharePoint Online listed in order of the permissions hierarchy:

• The Global administrator of the Office 365 portal is also a SharePoint Online administrator. When you purchase Office 365, a team site is automatically created, and the Office 365 global admin is included as the primary Site Collection administrator for that site. Keep in mind that you need to assign yourself a SharePoint Online license to access these services or you will receive an “Access Denied” message.
  • The SharePoint Online administrator, designated by the Global administrator, has access to the SharePoint Online admin center and can create and manage site collections, designate site collection administrators, manage user profiles, and more. The SharePoint Online admin also needs a SharePoint Online license. See more about this role’s key tasks below.
    • The Site collection administrator, which can be designated by the SharePoint Online administrator, has permissions to manage a site collection. A site collection can have several administrators, but only one primary administrator. The SharePoint Online administrator can assign permissions to the primary site collection administrator when creating a site collection, and can add more administrators for the site collection afterwards. Site collection administrators do not have access to the SharePoint Online admin center. They need SharePoint Online licenses to manage site collections.

Note: There is a separate administrator role called the Term store administrator, who can add or change terms in the term store (a directory of common terms you want to use across your organization). To learn more, see Assign roles and permissions to manage term sets.

Key tasks of the SharePoint Online administrator

Here are some of the key tasks users can do when they are assigned to the SharePoint Online admin role:

• Create site collections
• Manage site collections and global settings
• Assign site collection administrators to manage site collections
• Manage site collection storage limits
• Manage SharePoint Online user profiles

Reference – https://support.office.com/

Differences between SharePoint OnPrem vs SP Online

In this post we are going to explain the difference between SharePoint OnPrem Vs SharePoint Online.

1.  Basic Differences
   

   SP On Premises	SP Online
   The SharePoint server farm is within the corporate network. The IT Support team maintains the SharePoint farm and regularly applies Microsoft patches and updates. On premise, Active directory is used for authentication. Full access to use and customize any SharePoint feature as needed. Availability of Enterprise level services such as BCS, Performance Point, etc.	The SharePoint sites reside in the   Microsoft Data Centre (MDC). Microsoft applies the patch regularly. Microsoft’s SLA ensures 99.9%     availability. Microsoft’s global network of data centers provides reduced latency and high network bandwidth. Support for Client Side Object & App model.

2. Feature Comparisons  – All the basic functionality of SharePoint remains the same, there are a number of significant feature differences between On Premises and Online
   

   Category	On Premises	Online
   Product Features	Support for enterprise feature, Office web App (OWA) needs to be installed	Missing or limited features, pre-configured features
   Infrastructure deployment & maintenance	IT Support Team to deploy/manage farm, latest updates or patches not always deployed.	Microsoft manages the environment and ensures all updates and patches are deployed.
   Business Continuity (BC)	Dependent on internal capabilities.	Microsoft built-in redundancy and failover for data centers, but does not provide end user backups or data recovery.
   Cost Involved	Purchase/Maintain Hardware, Software licenses etc.	Annual subscriptions for Office 365 Plans billed on a per user basis.
   Customization Options	Full support for server side code and client side code, App usage from OAC and SAS	Full Support- Client Side, Limited Support-Server side, can use Apps from OAC or SAS
   Compliance Standard	Dependent on internal capabilities.	Verified by third party authors
   Information Security	Dependent on internal capabilities.	Information in MDS meets industry-specific security standards
   Storage needs	Expensive storage devices, Site Collection -More than 100GB, Scalable Storage Size	Cheap storage cost, Site Collection- up to 100Gb, Maximum content in single tenant -O365 plan based
   Development	Full trust solution can be deployed- Features in farm solutions can have scope as wide as the site collection, web application, or whole farm Public facing website with much of customization is possible Custom “Managed Path” allowed More control can be delegated to power users	Full trust solution and Sandbox cannot be deployed- Allowed More control cannot be delegated to power users and maxim privilege level is Site Collection level.

   
   
3. Technical Comparisons –
   

   Services	Online	On Premises
   Search	Limited access to query	Full text Query
   InfoPath Form Services	Only in E3, E4 and K1 plans	Required License to use InfoPath Form Services
   Claim Bases Authentication	N/A	Can use SQL , LDAP and AD authentication
   Managed Accounts	N/A	Provides a Managed Account to user at access the SP Admin Services
   Usage reporting and Logging	N/A	Provides LOGS and Reporting to check the exceptions and System Report.
   Alternate Access Mapping	N/A	Provides a map requests where the URL of a Web request received by Internet Information Services (IIS) differs from the URL that was typed by a user
   SharePoint Health Analyser	N/A	Site collection pre-upgrade health check examines a site collection and then generates a report listing ay potential upgrade issues and how to address the issues

   
   
4. SharePoint OnPrem Prons and Cons
   

   Pros	Cons
   Control Performance	Cost of internal resources (staff, hardware, software, etc)
   Scale Up and Scale Out	Additional Geographic redundancy costs
   Reduces Bandwidth requirements	Disaster Recovery dependent on internal capabilities
   Fully Customizable	Scale Up/Out Cost( SW/HW)
   Full Server and SQL Database	Patching Servers/farms
   Migrate as Needed	Extra configurations for External Collaboration
   Seamless Single Sign on with Corporate Active Directory

5.  SharePoint Online Prons and Cons
   

   Pros	Cons
   Uptime 99.99%	More ISP Bandwidth
   Multiple Data centers	Limited Customizations
   Geographically redundant	Possible Storage Costs
   Shorted release cycle	Recovery SLAs
   Managed Services (SaaS)	No Server access
   Pay as you go (Low Cost)
   Reduced impact on internal IT resources
   Scalability