Get-ObjectProperty : Could not deserialize value 'WriteResultToDisk' as it is not a valid member of type 'PrtgAPI.DebugMode'

[MikeSouthwell]

Can someone please assist with the following error?

I'm trying to customise the "microsoft365sensor" type. However, when I try to pipe Get-Object Property to Get-Sensor it throws the following error (I want to change the Search for field under Filter by Subject, but I don't know what the -RawProperty would be):

`Get-Sensor -Name $clientSubject | Get-ObjectProperty

Get-ObjectProperty : Could not deserialize value 'WriteResultToDisk' as it is not a valid member of type 'PrtgAPI.DebugMode'. Could not process XML '<injected_writeresult>WriteResultToDisk</injected_writeresult>'.
At line:1 char:35

• Get-Sensor -Name $clientSubject | Get-ObjectProperty
  • CategoryInfo : NotSpecified: (:) [Get-ObjectProperty], XmlDeserializationException
  • FullyQualifiedErrorId : PrtgAPI.XmlDeserializationException,PrtgAPI.PowerShell.Cmdlets.GetObjectProperty`

[lordmilko]

The DebugMode property of a given object has historically been one of the following three values on several sensor types:

• Discard
• WriteToDisk
• WriteToDiskWhenError

You can see that "WriteResultToDisk" is slightly different. I will need to investigate whether this is unique to this sensor type or PRTG have renamed one of the previous historical values

In the meantime, you can work around this by instead asking PrtgAPI to emit raw object properties

Get-Sensor $clientSubject | Get-ObjectProperty -Raw

[MikeSouthwell]

Thanks lordmilko,

When I try and run that command it doesn't return anything.

It could be that that sensor type doesn't have any Raw values?

I just want to change the Search for field value under Filter by Subject

[lordmilko]

Can you confirm that Get-Sensor $clientSubject returns something?

You will need to set the $clientSubject variable again if you execute this in a fresh PowerShell session

[MikeSouthwell]

It doesn't return anything, but it doesn't return an error either. The $clientSubject variable is working and I have confirmed that when I just run $clientSubject it does output the intended variable it is storing.

[lordmilko]

This (likely) means the $clientSubject variable does not exactly match the name of the sensor

For the purposes of this issue, can you try and do Get-Sensor -Id <id> instead, where ID is the ID of the sensor shown in the URL, then do Get-Sensor -Id <id> | Get-ObjectProperty -Raw

[lordmilko]

If the sensor name contains wildcard characters that can cause an issue: specifically *, ?, [ and ]

[MikeSouthwell]

I got it working now. Thanks @lordmilko!

For anyone else, this is the PowerShell code required:

Get-Sensor -Name $clientSubject | Set-ObjectProperty -RawProperty paessler-microsoft365-mailbox_section-mailbox_group-filter_subject_string_ -RawValue "$subjectString" -Force

[Timmeeh]

I get a similar result for the sensors of type REST Custom v2 (BETA). PRTG 24.1.92.1554.

get-sensor -tags rest | Get-ObjectProperty -RawProperty writeresult returns DiscardResult for all ~100 of them.

So it seems some PRTG sensors can now also return a string instead of integer values?