Issue with PayPal Recurring Payments Profile

Question

I am working with PayPal NVP to create a subscription-based service, where I will be accepting payments via PayPal and the type of payment is going to be Recurring Payments.

This is my signup.php page:

//SetExpressCheckout
$sec_data = array(
    'USER'                           => PAYPAL_API_USERNAME,
    'PWD'                            => PAYPAL_API_PASSWORD,
    'SIGNATURE'                      => PAYPAL_API_SIGNATURE,
    'VERSION'                        => "95.0",
    'METHOD'                         => "SetExpressCheckout",
    'PAYMENTREQUEST_0_AMT'           => $total_amt,
    'RETURNURL'                      => "<url_structure>",
    'CANCELURL'                      => "<url_structure>",
    'NOSHIPPING'                     => "1",
    'SOLUTIONTYPE'                   => "Sole",
    'LOGOIMG'                        => "<url_structure>",
    'BRANDNAME'                      => "My Website",
    'PAYMENTREQUEST_0_CURRENCYCODE'  => "USD",
    'PAYMENTREQUEST_0_ITEMAMT'       => $current_plan_price,
    'PAYMENTREQUEST_0_PAYMENTACTION' => "Sale",
    'L_PAYMENTREQUEST_0_AMT0'        => $current_plan_price,
    'L_BILLINGTYPE0'                 => "RecurringPayments",
    'L_BILLINGAGREEMENTDESCRIPTION0' => "You'll be billed USD ".$total_amt.".",
    'PAYMENTREQUEST_0_DESC'          => "You'll be billed USD ".$total_amt.".",
    'PAYMENTREQUEST_0_CUSTOM'        => "Thank you for your payment!",
    'PAYMENTREQUEST_0_INVNUM'        => "INV-".$invoice_num,
    'NOTETOBUYER'                    => $current_plan_name,
    'PAYMENTREQUEST_0_PAYMENTREASON' => "None",
    'EMAIL'                          => $email,
    'LANDINGPAGE'                    => "Billing",
    'PAYMENTREQUEST_0_TAXAMT'        => $tax_amt,
    'L_PAYMENTTYPE0'                 => "InstantOnly"
);

//GetExpressCheckoutDetails
$get_ec_data = array(
    'USER'      => PAYPAL_API_USERNAME,
    'PWD'       => PAYPAL_API_PASSWORD,
    'SIGNATURE' => PAYPAL_API_SIGNATURE,
    'TOKEN'     => $ec_token,
    'METHOD'    => "GetExpressCheckoutDetails",
    'VERSION'   => "95.0"
);

//DoExpressCheckoutPayment
$decp_data = array(
    'USER'                          => PAYPAL_API_USERNAME,
    'PWD'                           => PAYPAL_API_PASSWORD,
    'SIGNATURE'                     => PAYPAL_API_SIGNATURE,
    'METHOD'                        => "DoExpressCheckoutPayment",
    'TOKEN'                         => $ec_token,
    'PAYERID'                       => $ec_response['PAYERID'],
    'PAYMENTREQUEST_0_AMT'          => $total_amt,
    'PAYMENTREQUEST_0_CURRENCYCODE' => "USD",
    'PAYMENTREQUEST_0_ITEMAMT'      => $total_amt,
    'VERSION'                       => "95.0"
);

//CreateRecurringPaymentsProfile
$crpp_array = array(
    'USER'               => PAYPAL_API_USERNAME,
    'PWD'                => PAYPAL_API_PASSWORD,
    'SIGNATURE'          => PAYPAL_API_SIGNATURE,
    'VERSION'            => "95.0",
    'METHOD'             => "CreateRecurringPaymentsProfile",
    'TOKEN'              => $ec_token,
    'PROFILESTARTDATE'   => $last_payment_date,
    'DESC'               => "You'll be billed USD ".$total_amt.".",
    'BILLINGPERIOD'      => "Month",
    'BILLINGFREQUENCY'   => "12",
    'TOTALBILLINGCYCLES' => '0',
    'AMT'                => $total_amt,
    'CURRENCYCODE'       => "USD",
    'EMAIL'              => $get_cx_data['cx_email'],
    'STREET'             => "Bedford Ave",
    'CITY'               => "Brooklyn",
    'STATE'              => "New York",
    'COUNTRYCODE'        => "US",
    'ZIP'                => "11211"
);

//GetRecurringPaymentsProfileDetails
$grppd_array = array(
    'USER'      => PAYPAL_API_USERNAME,
    'PWD'       => PAYPAL_API_PASSWORD,
    'SIGNATURE' => PAYPAL_API_SIGNATURE,
    'VERSION'   => "95.0",
    'METHOD'    => 'GetRecurringPaymentsProfileDetails',
    'PROFILEID' => $get_crpp_response['PROFILEID']
);

And I am sending the nvp data to PayPal like this:

toPayPal($nvp_data, "https://api-3t." .(PAYPAL_MODE == 'TEST' ? 'sandbox.paypal' : 'paypal'). ".com/nvp");

Now the issue is that everything seems to be working on Sandbox but when it comes to Live, the Recurring Account is not being created on my main PayPal account.

Is there anything that I am missing? Also, do I need to install NVP SDK or something, I have no idea about it.

Also, in the sandbox, when I am running print_r() on the response of GetRecurringPaymentsProfileDetails the PROFILESTARTDATE and NEXTPAYMENTDATE are the same. Is that the issue?

Here are the PayPal functions that I am using on my paypal-functions.php page:

function toPayPal($inputArray, $PayPalURL) {
        $nvp_post_data_str   = '';

        foreach($inputArray as $key => $value) {
            $nvp_post_data_str .= $key.'='.urlencode($value).'&';
        }

        $nvp_post_data_str = substr($nvp_post_data_str, 0, strlen($nvp_post_data_str) - 1);
        $ch = curl_init();
        
        curl_setopt($ch, CURLOPT_URL, $PayPalURL);
        curl_setopt($ch, CURLOPT_VERBOSE, 1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $nvp_post_data_str);
        $httpResponse = curl_exec($ch);
        
        //$httpResponse;
        
        $httpResponse = explode('&', $httpResponse);
        
        for($i = 0; $i < count($httpResponse); $i++) {
            $temp_array = explode('=', $httpResponse[$i]);
            $httpResponseArray[$temp_array[0]] = urldecode($temp_array[1]);
        }
        
        return $httpResponseArray;
    }

Am I missing out on any curl code on the paypal-functions.php page or something?

Any help would be greatly appreciated

I tried reading the PayPal NVP documentation as well and whatever I coded is based on that. I am not sure why everything is working on Sandbox and not on Live mode.

On Sandbox, when I am running print_r() on the response of CreateRecurringPaymentsProfile method, I am getting these values:

[PROFILEID] => I-SXK4UUEV0M0J
[PROFILESTATUS] => ActiveProfile
[ACK] => Success

and I am able to capture the profileid in my database as well.

However, when I am switching to Live mode, the same code is able to create a recurring profile on my PayPal business account. Also, in my database, the profileid column in not being populated.

Thank you!