Powershell export-csv shows System.Object[],"System.Object[]"

Question

I want to export my powershell script to csv, only when the file is exported, I get the headers in my csv file, but the data contains systemobject.

#------- Opvragen token tiptrack -------
#Dit is de URL waar de token voor tiptrack wordt opgevraagd.
$Url_token="https://tiptracknext-staging-login.indicia.nl/oauth2/aus342go9hNphcHXM0i7/v1/token"

#Dit is de body die mee wordt gestuurd in de request, deze informatie staat gelijk aan de data in de post request vanuit de handleiding.
$Data_token = @{
grant_type="client_credentials"
client_id="123457"
client_secret="123456"
scope="eapi"
}

$token_tiptrack=Invoke-RestMethod -Method Post -Uri $Url_token -ContentType "application/x-www-form-urlencoded" -Body $Data_token

#------- Opvragen Employerbudgetsid -------
#Dti is de URL waarna de GET request wordt gestuurd om het employerid te kunnen.
$Url_budgetid='https://staging.tiptrack.nl/Tiptrack.Employer.Api/odata/EmployeeBudgets?$expand=Employee($expand=SecureEmployee)&$top=5'

#Dit is header die mee wordt gestuurd in de request. Deze data in deze header staat gelijk aan de data in de API handleiding.
$header_process = @{
Authorization='Bearer '+$token_tiptrack.access_token
"accept"="application/json"
}

#Vanuit het uploaden van het bestand krijgen we een reactie van de server, in deze reactie staat het upload id, deze id hebben we nodig om het bestand te kunnen verwerken. 
$data = Invoke-RestMethod -Uri $Url_budgetid -Method Get -Headers $header_process 


$exportdata = $data | 
    ForEach-Object { return [PSCustomObject]@{ 
        EmployeeNumber = $_.Value.Employee.SecureEmployee.EmployeeNumber;
        ComputedCurrentBalanceAmount =($_.Value.ComputedCurrentBalanceAmount) ;
        }  } 

$exportdata  | Select EmployeeNumber,ComputedCurrentBalanceAmount | Export-Csv C:\afas\test3.csv -NoTypeInformation

This is the ouput that i want:

# EmployeeNumber,ComputedCurrentBalanceAmount
# EMP1,100,00
# EMP2,250,49
# EMP3,450,00 

Answer 1

The provided output data does not list any data for the SecureEmployee property. So I'll assume your property hierarchy in your code is correct. The Value property contains an array of Employee objects that you will need to iterate.

$exportdata = $data.Value | ForEach-Object { 
    [PSCustomObject]@{ 
        EmployeeNumber = $_.Employee.SecureEmployee.EmployeeNumber
        ComputedCurrentBalanceAmount = $_.ComputedCurrentBalanceAmount
    }
} 

$exportdata | Export-Csv C:\afas\test3.csv -NoTypeInformation