I dont think that there is a limit, but I do know that one outbound message can have 100 records in it. I would check with the API documentation

~Mike

Hi

Just for anyone who might be intrested about API limits with regards to outbound messages

I had a read of the documentation which can be found here:

Implementation Considerations

From what I can figure out I don't think there is a API limit on the amount of outbound messages salesforce can send out.

Any action that sends a call to the API counts toward usage limits, except the following:

• Outbound messages
• Apex callouts

So from what I can gather there is no API limit problems here but I think the way the sample code in this thread logs in to salesforce does have an effect on the API usage limit.

So I was wondering. Does the sample code here login everytime saleforce sends it a soap message. So for instance if it sends to two seperate messages within say 5 seconds of each other will it be logging in twice?

Thanks in advance for your help

My code does not actually login to Salesforce at all. It just sends back the response of true to be able to clear that message out of the queue

Thanks for this great thread and all its contributors.

I'm currently receiving an outbound message and running a simple CURL function.
Everything works except for the notifications and while it doesn't affect my processing, it's probably best to address it instead of leaving Salesforce to repeatedly send the messages.

In Salesforce, I receive a (500) Internal Server Error in the message queue, but I have verified through file/email output that the data is being received and processed.

PHP Code:

<?php
error_reporting(0);

// Define a log location for archiving each request recieved
$log_location = "/myhost/httpdocs/salesforce/salesforceresponse.txt";

//Checks for presence of the cURL extension.
function _iscurlinstalled() 
{
    if  (in_array  ('curl', get_loaded_extensions())) 
    {
        return true;
    }
    else
    {
        return false;
    }
}

if (!_iscurlinstalled()) die("cURL is NOT installed.");

$data = fopen('php://input','rb');

$content = stream_get_contents($data);

if ($content)
{
    respond('true');
}
else
{
    respond('false');
}

$dom = new DOMDocument();
$dom->loadXML($content);

// Got DOM values directly 
  $Email = $dom->getElementsByTagName("Email")->item(0)->textContent; // GET SALESFORCE EMAIL FROM <sf:Email></sf:Email>
  $FirstName = $dom->getElementsByTagName("FirstName")->item(0)->textContent; // GET SALESFORCE FIRST NAME FROM <sf:FirstName></sf:FirstName>
  $LastName = $dom->getElementsByTagName("LastName")->item(0)->textContent; // GET SALESFORCE LAST NAME FROM <sf:LastName></sf:LastName> 
  $SForceId = $dom->getElementsByTagName("Id")->item(1)->textContent; // GET SALESFORCE ID FROM <sf:Id></sf:Id> 

// Start my CURL function
// ...
// End my CURL function

//login script to salesforce for the $client variable ***change this path
require_once ('/myhost/httpdocs/salesforce/includes/sfdc.inc');

//clean all the data and then exit
exit;

//functions
/* Parse a Salesforce.com Outbound Message notification SOAP packet
* into an array of notification parms and an sObject.   */
function respond($tf)
{

    print '<?xml version = "1.0" encoding = "utf-8"?>
   <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
       <soapenv:Body>
           <notifications xmlns="http://soap.sforce.com/2005/09/outbound">
               <Ack>'.$tf.'</Ack>
              <notifications>
          </soapenv:Body>
      </soapenv:Envelope>';
      
}

?>

Is there anything I could be doing wrong?
Any help or information is greatly appreciated.

From my past experiences this can happen if you have anything in our output buffer at all. Try this, turn off the DIE error and the error reporting and see if that solves the issue

You can always check to see what is in your output buffer and email the contents to your email to see if you are actually getting anything

Hope that helps!!

~Mike