Unable to get access token using apex_web_service


Unable to get access token using apex_web_service

I am trying to generate an access token and refresh token. But end up with the below reply.  It is really hard to guess where the error is. 



<!DOCTYPE html>

<!-- template name: general.error.page.template.html -->

<html lang="en" dir="ltr">
<base href="https://idfed.constantcontact.com/" />
<meta name="robots" content="noindex, nofollow" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="viewport" content="initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<link rel="stylesheet" type="text/css" href="assets/css/main.css" />

<div class="ping-container">
<div class="ping-header">
</div><!-- .ping-header -->
<div class="ping-body-container">

<div class="section-title">
Unexpected System Error

<div class="ping-messages ping-nopad">

<div class="ping-error">
Sorry for the inconvenience. Please contact your administrator for assistance and provide the reference number below to help locate and correct the problem.

<div class="top-lowered">
Reference#: <strong>cejurw</strong>


</div> <!-- .ping-body-container -->
<div class="ping-footer-container">
<div class="ping-footer">
<div class="ping-credits"/>
</div> <!-- .ping-footer -->
</div> <!-- .ping-footer-container -->
</div> <!-- .ping-container -->



Kindly advise!





Hello @MichelleH240,


In order to fully troubleshoot, would you please send us an email at webservices@constantcontact.com with the following information?

  •  Your API key
  • The code you're using / API calls you're making
  • Which step of the authorization flow is returning this error
  • The login username of the Constant Contact account you're attempting to generate a token for, if the issue seems to be limited to a specific account


Aarron G.
API Support Specialist
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