Check Attached Remote Event Receivers for list

function Get-SPOListEventreceivers
{
param (
  [Parameter(Mandatory=$true,Position=1)]
[string]$Username,
[Parameter(Mandatory=$true,Position=2)]
$AdminPassword,
        [Parameter(Mandatory=$true,Position=3)]
[string]$Url
)

  $ctx=New-Object Microsoft.SharePoint.Client.ClientContext($Url)
  $ctx.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($Username, $AdminPassword)

try
{
$ctx.ExecuteQuery()
} catch [Net.WebException]
        {
           
            Write-Host $Url " failed to connect to the site" $_.Exception.Message.ToString() -ForegroundColor Red
}

 $ctx.Load($ctx.Site)
  $ctx.Load($ctx.Web.Lists)
  $ctx.ExecuteQuery()
  Write-Host $ctx.Web.Lists.Count
  for($j=0;$j -lt $ctx.Web.Lists.Count;$j++)
  {
  $lista=$ctx.Web.Lists[$j]
 $ctx.Load($lista)
  $ctx.ExecuteQuery()
 $recevery=$lista.EventReceivers
 $ctx.Load($recevery)
 $ctx.ExecuteQuery()
 Write-Host $recevery.Count  $lista.Title

 for($i=0;$i -lt $recevery.Count ; $i++)
 {
 $ctx.Load($recevery[$i])
 $ctx.ExecuteQuery()
 Write-Output $recevery[$i]
 }

 }

}


# Paths to SDK. Please verify location on your computer.
Add-Type -Path "c:\Program Files\Common Files\microsoft shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type -Path "c:\Program Files\Common Files\microsoft shared\Web Server Extensions\15\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"

# Insert the credentials and the name of the admin site
$Username="username@domain.onmicrosoft.com"
$AdminPassword=Read-Host -Prompt "Password" -AsSecureString
$Url="https://domain.sharepoint.com/sites/sitecollectionname"


Get-SPOListEventreceivers -Username $Username -AdminPassword $AdminPassword -Url $Url

Sharepoint Permission Report

# This script gets permissions for all users in a web application on all objects (web application > site collection > web > list/library > item)
# Note that unlike Salaudeen's original script, this script shows Limited Access permissions.
# Note that AD groups and users in AD groups are not included

Add-PSSnapin Microsoft.SharePoint.PowerShell -ErrorAction SilentlyContinue

Function GetUserAccessReport($WebAppURL, $FileUrl)
{
Write-Host "Generating permission report..."

#Get All Site Collections of the WebApp
$SiteCollections = Get-SPSite -WebApplication $WebAppURL -Limit All

#Write CSV- TAB Separated File) Header
"URL`tSite/List/Folder/Item`tTitle/Name`tPermissionType`tPermissions `tLoginName" | out-file $FileUrl

#Check Web Application Policies
$WebApp= Get-SPWebApplication $WebAppURL

foreach ($Policy in $WebApp.Policies)
  {
$PolicyRoles=@()
foreach($Role in $Policy.PolicyRoleBindings)
{
$PolicyRoles+= $Role.Name +";"
}

"$($AdminWebApp.URL)`tWeb Application`t$($AdminSite.Title)`tWeb Application Policy`t$($PolicyRoles)`t$($Policy.UserName)" | Out-File $FileUrl -Append
}

#Loop through all site collections
foreach($Site in $SiteCollections)
    {
  #Check Whether the Search User is a Site Collection Administrator
  foreach($SiteCollAdmin in $Site.RootWeb.SiteAdministrators)
      {
"$($Site.RootWeb.Url)`tSite`t$($Site.RootWeb.Title)`tSite Collection Administrator`tSite Collection Administrator`t$($SiteCollAdmin.LoginName)" | Out-File $FileUrl -Append
}
 
   #Loop throuh all Sub Sites
       foreach($Web in $Site.AllWebs)
       {
if($Web.HasUniqueRoleAssignments -eq $True)
{
#Get all the users granted permissions to the list
foreach($WebRoleAssignment in $Web.RoleAssignments )
{
#Is it a User Account?
if($WebRoleAssignment.Member.userlogin)   
{
#Get the Permissions assigned to user
$WebUserPermissions=@()
foreach ($RoleDefinition  in $WebRoleAssignment.RoleDefinitionBindings)
{
$WebUserPermissions += $RoleDefinition.Name +";"
}

#Send the Data to Log file
"$($Web.Url)`tSite`t$($Web.Title)`tDirect Permission`t$($WebUserPermissions) `t$($WebRoleAssignment.Member.LoginName)" | Out-File $FileUrl -Append
}
#Its a SharePoint Group, So search inside the group and check if the user is member of that group
else 
{
foreach($user in $WebRoleAssignment.member.users)
{
#Get the Group's Permissions on site
$WebGroupPermissions=@()
foreach ($RoleDefinition  in $WebRoleAssignment.RoleDefinitionBindings)
{
$WebGroupPermissions += $RoleDefinition.Name +";"
}

#Send the Data to Log file
"$($Web.Url)`tSite`t$($Web.Title)`tMember of $($WebRoleAssignment.Member.Name) Group`t$($WebGroupPermissions)`t$($user.LoginName)" | Out-File $FileUrl -Append
}
}
}
}

#********  Check Lists, Folders, and Items with Unique Permissions ********/
foreach($List in $Web.lists)
{
if($List.HasUniqueRoleAssignments -eq $True -and ($List.Hidden -eq $false))
{
#Get all the users granted permissions to the list
foreach($ListRoleAssignment in $List.RoleAssignments )
{
#Is it a User Account?
if($ListRoleAssignment.Member.userlogin)   
{
#Get the Permissions assigned to user
$ListUserPermissions=@()
foreach ($RoleDefinition  in $ListRoleAssignment.RoleDefinitionBindings)
{
$ListUserPermissions += $RoleDefinition.Name +";"
}

#Send the Data to Log file
"$($List.ParentWeb.Url)/$($List.RootFolder.Url)`tList`t$($List.Title)`tDirect Permission`t$($ListUserPermissions) `t$($ListRoleAssignment.Member)" | Out-File $FileUrl -Append
}
#Its a SharePoint Group, So search inside the group and check if the user is member of that group
else 
{
foreach($user in $ListRoleAssignment.member.users)
{
#Get the Group's Permissions on site
$ListGroupPermissions=@()
foreach ($RoleDefinition  in $ListRoleAssignment.RoleDefinitionBindings)
{
$ListGroupPermissions += $RoleDefinition.Name +";"
}

#Send the Data to Log file
"$($List.ParentWeb.Url)/$($List.RootFolder.Url)`tList`t$($List.Title)`tMember of $($ListRoleAssignment.Member.Name) Group`t$($ListGroupPermissions)`t$($user.LoginName)" | Out-File $FileUrl -Append
}
}
}
}

#Get Folder level permissions
foreach($Folder in $List.folders)
{
if($Folder.HasUniqueRoleAssignments -eq $True)
{
#Get all the users granted permissions to the folder
foreach($FolderRoleAssignment in $Folder.RoleAssignments )
{
#Is it a User Account?
if($FolderRoleAssignment.Member.userlogin)   
{
#Get the Permissions assigned to user
$FolderUserPermissions=@()
foreach ($RoleDefinition  in $FolderRoleAssignment.RoleDefinitionBindings)
{
$FolderUserPermissions += $RoleDefinition.Name +";"
}

#Send the Data to Log file
"$($Folder.Web.Url)/$($Folder.Url)`tFolder`t$($Folder.Title)`tDirect Permission`t$($FolderUserPermissions) `t$($FolderRoleAssignment.Member)" | Out-File $FileUrl -Append
}
#Its a SharePoint Group, So search inside the group and check if the user is member of that group
else 
{
foreach($user in $FolderRoleAssignment.member.users)
{
#Get the Group's Permissions on site
$FolderGroupPermissions=@()
foreach ($RoleDefinition  in $FolderRoleAssignment.RoleDefinitionBindings)
{
$FolderGroupPermissions += $RoleDefinition.Name +";"
}

#Send the Data to Log file
"$($Folder.Web.Url)/$($Folder.Url)`tFolder`t$($Folder.Title)`tMember of $($FolderRoleAssignment.Member.Name) Group`t$($FolderGroupPermissions)`t$($user.LoginName)" | Out-File $FileUrl -Append

}
}
}
}
}

#Get Item level permissions
foreach($Item in $List.items)
{
if($Item.HasUniqueRoleAssignments -eq $True)
{
#Get all the users granted permissions to the item
foreach($ItemRoleAssignment in $Item.RoleAssignments )
{
#Is it a User Account?
if($ItemRoleAssignment.Member.userlogin)   
{
#Get the Permissions assigned to user
$ItemUserPermissions=@()
foreach ($RoleDefinition  in $ItemRoleAssignment.RoleDefinitionBindings)
{
$ItemUserPermissions += $RoleDefinition.Name +";"
}

                                #Prepare item's absolute Url and Name
                                $ItemDispForm = $Item.ParentList.Forms | where { $_.Type -eq "PAGE_DISPLAYFORM" } | Select-Object -first 1
                                if ($ItemDispForm.Url)
                                {
                                    $ItemUrl = "$($Item.Web.Url)/$($ItemDispForm.Url)?ID=$($Item.ID)"
                                }
                                else
                                {
                                    $ItemUrl = "$($Item.Url)"
                                }

                                if ($Item.Name)
                                {
                                    $ItemTitle = $Item.Name
                                }
                                else
                                {
                                    $ItemTitle = $Item.Title
                                }

#Send the Data to Log file
"$($ItemUrl)`tItem`t$($ItemTitle)`tDirect Permission`t$($ItemUserPermissions) `t$($ItemRoleAssignment.Member)" | Out-File $FileUrl -Append
}
#Its a SharePoint Group, So search inside the group and check if the user is member of that group
else 
{
foreach($user in $ItemRoleAssignment.member.users)
{
#Get the Group's Permissions on site
$ItemGroupPermissions=@()
foreach ($RoleDefinition  in $ItemRoleAssignment.RoleDefinitionBindings)
{
$ItemGroupPermissions += $RoleDefinition.Name +";"
}

                                    #Prepare item's absolute Url and Name
                                    $ItemDispForm = $Item.ParentList.Forms | where { $_.Type -eq "PAGE_DISPLAYFORM" } | Select-Object -first 1
                                    if ($ItemDispForm.Url)
                                    {
                                        $ItemUrl = "$($Item.Web.Url)/$($ItemDispForm.Url)?ID=$($Item.ID)"
                                    }
                                    else
                                    {
                                        $ItemUrl = "$($Item.Url)"
                                    }

                                    if ($Item.Name)
                                    {
                                        $ItemTitle = $Item.Name
                                    }
                                    else
                                    {
                                        $ItemTitle = $Item.Title
                                    }

                                    #Send the Data to Log file
                                    "$($ItemUrl)`tItem`t$($ItemTitle)`tMember of $($ItemRoleAssignment.Member.Name) Group`t$($ItemGroupPermissions)`t$($user.LoginName)" | Out-File $FileUrl -Append

}
}
}
}
}
}
}
}
}

#Call the function to Check User Access
GetUserAccessReport "http://web" "C:\SharePoint_Permission_Report.csv"
Write-Host "Complete"

Delete all items from list using Powershell script

#Load SharePoint CSOM Assemblies
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"
 
#Variables for Processing
$SiteUrl = "https://"
$ListName="ListName"

$UserName="test@cp.onmicrosoft.com"
$Password ="11111"
 
#Setup Credentials to connect
$Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($UserName,(ConvertTo-SecureString $Password -AsPlainText -Force))
 
#Set up the context
$Context = New-Object Microsoft.SharePoint.Client.ClientContext($SiteUrl)
$Context.Credentials = $credentials
 
#Get the List
$List = $Context.web.Lists.GetByTitle($ListName)
$ListItems = $List.GetItems([Microsoft.SharePoint.Client.CamlQuery]::CreateAllItemsQuery())
$Context.Load($ListItems)
$Context.ExecuteQuery()     

write-host "Total Number of List Items found:"$ListItems.Count

    #sharepoint online powershell delete all list items
    if ($ListItems.Count -gt 0)
    {
        #Loop through each item and delete
        For ($i = $ListItems.Count-1; $i -ge 0; $i--)
        {
            $ListItems[$i].DeleteObject()
        }
        $Context.ExecuteQuery()
       
        Write-Host "All List Items deleted Successfully!"
    }

Create Cab File using cmd

makecab "C:\Users\Downloads\manifest.xml" "C:\Users\Downloads\Archive.cab"

Generate Audit Log

Step 1:
Goto Main Site and click on site settings

Step 2:
Click on Audit Log reports

Step 3 :
Click on Run a custom report

Step 4:
select the settings and click on OK to generate Audit Log.

Refresh Login Token in Rest API

Below Code is used in AJAX Call to Refresh the Login Token in Rest API Queries

"X-RequestDigest": $('#__REQUESTDIGEST').val(data.d.GetContextWebInformation.FormDigestValue)

or

setInterval(function() {
UpdateFormDigest(_spPageContextInfo.webServerRelativeUrl, _spFormDigestRefreshInterval);
}, 5 * 60000);

Login with New User in Sharepoint

Domain/sites/Sitecollection/_layouts/closeConnection.aspx?loginasanotheruser=true