Void On BillPayment is not working

[shoaibsharif]

Currently, when I am trying to void a BillPayment I keep getting Unknow Operation error:

$bill_payment= $dataService->FindById('BillPayment', 1);
$dataService->Void($bill_payment);

I found out that it is not getting the correct query params on DataService.php:

QuickBooks-V3-PHP-SDK/src/DataService/DataService.php

Lines 862 to 866 in 20ce804

	if(in_array($className, CoreConstants::PAYMENTCLASSNAME)) {
	$appendString = CoreConstants::VOID_QUERYPARAMETER_PAYMENT;
	} else{
	$appendString = CoreConstants::VOID_QUERYPARAMETER_GENERAL;
	}

and CoreConstant.php

QuickBooks-V3-PHP-SDK/src/DataService/DataService.php

Line 862 in 20ce804

if(in_array($className, CoreConstants::PAYMENTCLASSNAME)) {

I have made a pull request #478 where it fixes the issue.