Microsoft Flow – How to clear people or person fields in SharePoint list items

Using the HTTP request I can clear the people or person field by setting the StringId to an empty string and the Id to -1.

Plumsail Form Design for Sharepoint List

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PowerApps Set Dropdown default value formula

I have PowerApps form with dropdown box is Priority, when user open the form , by default it will load dropdown value is Low.

Here you are:

LookUp(Choices(ITHelpDesk.'Priority'),Value="Low")

How do I get Current User Login detail from MS power Apps

You can use the Office 365 Users Connector to get this information. 

Current User

Office365Users.MyProfile().Department

Office365Users.MyProfile().DisplayName

Office365Users.MyProfile().GivenName

Office365Users.MyProfile().Id

Office365Users.MyProfile().JobTitle

Office365Users.MyProfile().Mail

Office365Users.MyProfile().MailNickname

Office365Users.MyProfile().Surname

Office365Users.MyProfile().TelephoneNumber

Office365Users.MyProfile().UserPrincipalName

Office365Users.MyProfile().AccountEnabled

To show information about another user:
Office365Users.UserProfile(name@company.com).Department

Office365Users.UserProfile(name@company.com).DisplayName
Office365Users.UserProfile(name@company.com).GivenName
Office365Users.UserProfile(name@company.com).Id
Office365Users.UserProfile(name@company.com).JobTitle
Office365Users.UserProfile(name@company.com).Mail
Office365Users.UserProfile(name@company.com).MailNickname
Office365Users.UserProfile(name@company.com).Surname
Office365Users.UserProfile(name@company.com).TelephoneNumber
Office365Users.UserProfile(name@company.com).UserPrincipalName
Office365Users.UserProfile(name@company.com).AccountEnabled

To show information about another user's manager:Office365Users.Manager(name@company.com).Department
Office365Users.Manager(name@company.com).DisplayName
Office365Users.Manager(name@company.com).GivenName
Office365Users.Manager(name@company.com).Id
Office365Users.Manager(name@company.com).JobTitle
Office365Users.Manager(name@company.com).Mail
Office365Users.Manager(name@company.com).MailNickname
Office365Users.Manager(name@company.com).Surname
Office365Users.Manager(name@company.com).TelephoneNumber
Office365Users.Manager(name@company.com).UserPrincipalName
Office365Users.Manager(name@company.com).AccountEnabled

test3

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Test 2

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Re-Create WSS_Logging Database in the Sharepoint 2013 Server

My WSS_Logging Database is corrupted then I want to create new database.

My Central Admin --> Monitorng --> Configure usage and health data collection settings do point to WSS_Logging too, but this DB is not present.

you can create manually re-create WSS_Logging DB using in the following powershell script.

Looks like it will work. you should first delete Service Application since it already existed, but than you could recreate it + it created database. No complaints in the event log so far.

Try using this PowerShell:

#Configuration Variables
$UsageSAName = "Usage and Health Data Collection Service"
$DatabaseName = "WSS_Logging"
$DatabaseServer="SPSQL Servername\Instance Name"
$UsageLogPath = "C:\UsageLogs\"
 
#Get the Usage Service Application Service Instance
$ServiceInstance = Get-SPUsageService
 
#Create new Usage Service application
New-SPUsageApplication -Name $UsageSAName -DatabaseServer $DatabaseServer -DatabaseName $DatabaseName -UsageService $ServiceInstance #> $null
 
#Create Service Application Proxy..." 
$proxy = Get-SPServiceApplicationProxy | where {$_.TypeName -eq "Usage and Health Data Collection Proxy"}
$proxy.Provision()