An error occurred: 40030: Customer Not Found, using UsaEpay soap API

Question

Hi Stackoverflow community,

I am attempting to implement the "convertPaymentMethodToToken" method from USAePay soap api documentations. For the function to work, it is required to fetch the customer number from the UsaEpay acct, and it generates a Method ID through a "getCustomer" request, that will be used for the conversion. However, the implementation works only for a single customer and fails when I try to process multiple customers at once. The error message I receive is: "An error occurred while fetching details of customer 'customer1': 40030: Customer Not Found......". I have a large customer database of over 20,000 customers, and my goal is to convert each of their payment methods to tokens efficiently, without having to perform individual conversions for each customer. The USAePay documentation only provides information on how to implement the feature for a single customer.

here is my code by getting Method ID for a single customer

<?php 


$wsdl = "https://secure.usaepay.com/soap/gate/INBGTWZC/usaepay.wsdl";
$sourceKey = "your soruce key";
$pin = "1234";

function getClient($wsdl) {
  return new SoapClient($wsdl, array(
    'trace' => 1,
    'exceptions' => 1,
    'stream_context' => stream_context_create(
      array(
        'ssl' => array(
          'verify_peer' => false,
          'verify_peer_name' => false,
          'allow_self_signed' => true
        )
      )
    )
  ));
}

function getToken($sourceKey, $pin) {
  $seed = time() . rand();

  return array(
    'SourceKey' => $sourceKey,
    'PinHash' => array(
      'Type' => 'sha1',
      'Seed' => $seed,
      'HashValue' => sha1($sourceKey . $seed . $pin)
    ),
    'ClientIP' => $_SERVER['REMOTE_ADDR']
  );
}

$client = getClient($wsdl);
$token = getToken($sourceKey, $pin);

try {
    $custnum='customer number';
    print_r($client->getCustomer($token,$custnum));
  } catch (Exception $e) {
    // Code to handle the exception
    echo "An error occurred: " . $e->getMessage();
  }
    
  
?>

and here the successful response I get back (with the Method ID included)

Successful response.

here Is the code I'm trying it to do with multiple customers

<?php 

$wsdl = "https://sandbox.usaepay.com/soap/gate/43R1QPKU/usaepay.wsdl";
$sourceKey = "your api key";
$pin = "1234";

function getClient($wsdl) {
  return new SoapClient($wsdl, array(
    'trace' => 1,
    'exceptions' => 1,
    'stream_context' => stream_context_create(
      array(
        'ssl' => array(
          'verify_peer' => false,
          'verify_peer_name' => false,
          'allow_self_signed' => true
        )
      )
    )
  ));
}

function getToken($sourceKey, $pin) {
  $seed = time() . rand();

  return array(
    'SourceKey' => $sourceKey,
    'PinHash' => array(
      'Type' => 'sha1',
      'Seed' => $seed,
      'HashValue' => sha1($sourceKey . $seed . $pin)
    ),
    'ClientIP' => $_SERVER['REMOTE_ADDR']
  );
}

$client = getClient($wsdl);
$token = getToken($sourceKey, $pin);

$custnums = array();
for ($i = 1; $i <= 3; $i++) {
    $custnums[] = 'customer' . $i;
}

$methodIDs = array();
foreach ($custnums as $custnum) {
  try {
    $result = $client->getCustomer($token, $custnum);
    $methodID = $result[0]->MethodID;
    $methodIDs[] = $methodID;
    error_log("Method ID for customer $custnum: $methodID");
  } catch (Exception $e) {
    echo " An error occurred: " . $e->getMessage();
  }
}

?>

I've already been working on it all day,

Can anyone help me with this?

Thanks in advance