Update all your pingdom checks to use a single ID

Update-PingdomChecksIntegrationID.ps1

$VerbosePreference = "Continue"
if(!$cred){
    $cred = Get-Credential
}
$IntegrationID = 707
if($(Read-Host "Warning, this will replace all checks' integrations with ONLY integration ID $integrationID, do you wish to continue? y/n") -ne 'y'){
    return;
}
$params = @{
    uri = "https://api.pingdom.com/api/2.0/checks"
    method = "get"
    headers = @{
        "App-Key" = ""
        # Important, this is not YOUR Pingdom login, this is the original ACCOUNT email address
        "Account-Email" = ""
        "Accept-Encoding" = "gzip"
    }
    credential = $cred
    ErrorAction = "Stop"
    Verbose = $true
}

try{
    $checks = Invoke-RestMethod @params
    $checks = $checks.checks | ?{$_.status -ne "paused"}
}catch{
    Write-Error $_.exception.message
}

$detailedChecks = @{}
foreach($check in $checks){
    
    # Get detailed info about the check
    $params.uri = 'https://api.pingdom.com/api/2.0/checks/' + $check.id
    $check = Invoke-RestMethod @params
    
    if(!$check.check.integrationids){
        $updateParams = $params.clone()
        $updateParams.method = "put"
        $updateParams.add("body", @{"integrationids"=$integrationID})
        Invoke-RestMethod @updateParams | Out-Null
        Write-Verbose "updated $($check.check.name) to use integration"
        
    }
    
}