Add-MgServicePrincipalKey: Resource does not exist or one of its queried reference-property objects are not present

[qizu0302]

Describe the bug

Currently when I run
"Add-MgServicePrincipalKey -ServicePrincipalId $spoappid -BodyParameter $params -Verbose",
it always shows error “Add-MgServicePrincipalKey : Resource '00000003-0000-0ff1-ce00-000000000000' does not exist or one of its queried reference-property objects are not present.”

In my command, $spoappid is '00000003-0000-0ff1-ce00-000000000000', while $params is
$params = @{
keyCredential = @{
type = "AsymmetricX509Cert"
usage = "Verify"
key = [System.Text.Encoding]::ASCII.GetBytes("MIIDYDCCAki...")
}
passwordCredential = $null
proof = "eyJ0eXAiOiJ..."
}

According to this part in our document Configure server-to-server authentication from SharePoint Server to SharePoint in Microsoft 365,

I wonder where I can find the source code of Add-MgServicePrincipalKey so that I can troubleshoot my error by myself?

Expected behavior

This PS cmdlet can work without any errors.

How to reproduce

$spoappid="00000003-0000-0ff1-ce00-000000000000"

Import-Module Microsoft.Graph.Applications

$params = @{
keyCredential = @{
type = "AsymmetricX509Cert"
usage = "Verify"
key = [System.Text.Encoding]::ASCII.GetBytes("MIIDYDCCAki...")
}
passwordCredential = $null
proof = "eyJ0eXAiOiJ..."
}

Add-MgServicePrincipalKey -ServicePrincipalId $spoappid -BodyParameter $params

SDK Version

2.19.0

Latest version known to work for scenario above?

No response

Known Workarounds

No response

Debug output

Click to expand log

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### Configuration

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### Other information

_No response_