vitalyu

You can create an Article in Zendesk and say WordPress to sync this article content from WordPress post/page. 
Each time you update this WordPress’s page/post it will automatically update the article in Zendesk.

WordPress Page to Zendesk Article

Wordpress Page/Post to Zendesk Article Synchronization Plugin

pipdig

Zendesk Support is a trademark of Zendesk, Inc.
Add a Zendesk Support form to your WordPress site. This plugin will embed the form directly into your page content, matching your theme’s styling where possible. You can add a basic form very easily in minutes!
Want to create multiple forms with different fields? You can setup custom fields and options using the advanced features available.
Features and Options:
<ul>
<li>Uses the Zendesk API to open a ticket directly within your account. No need to worry about missed emails!</li>
<li>Add file attachments to tickets.</li>
<li>Support for Zendesk custom <a href="https://support.zendesk.com/hc/en-us/articles/203661506-About-ticket-fields" rel="nofollow ugc">ticket fields</a>.</li>
<li>Create multiple forms with different ticket fields.</li>
<li>Set the Priority level of tickets submitted by each form.</li>
<li>Pre-fill form fields with user data when logged in to WordPress.</li>
<li>Redirect user after form submission.</li>
<li>Automatic spam protection (without captcha).</li>
<li>Google reCAPTCHA spam protection.</li>
<li>Double click protection – Stop people from submitting the form twice by accident.</li>
<li>Google Analytics Events tracking on form submission.</li>
<li>Fully <a href="https://translate.wordpress.org/projects/wp-plugins/zendesk-request-form/dev" rel="nofollow ugc">translatable</a> into any language.</li>
<li>Automatically check email address for typos and suggest solutions via <a href="https://github.com/mailcheck/mailcheck" rel="nofollow ugc">mailcheck.js</a>.</li>
<li>Add User Agent and <a href="https://support.cloudflare.com/hc/en-us/articles/200168236-What-does-CloudFlare-IP-Geolocation-do" rel="nofollow ugc">CloudFlare Geolocation</a> data (if available) to the ticket.</li>
<li>HTTPS or plain HTTP support (HTTPS recommended).</li>
<li>HTML5 Pattern (Regular Expression) validation on fields.</li>
<li>Data is validated/sanitized before sending to Zendesk.</li>
</ul>
We created this plugin for our own support system. So you can be sure that we will update and maintain it into the future. If you have any feature suggestions, you are welcome to ask in the <a href="https://wordpress.org/support/plugin/zendesk-request-form" rel="ugc">support forum</a>.
Supported Custom Field Types:
<ul>
<li>Text</li>
<li>Textarea</li>
<li>Number</li>
<li>URL</li>
<li>Email</li>
<li>Password</li>
<li>Checkbox</li>
<li>Dropdown/Select</li>
<li>Date/Datepicker</li>
<li>Hidden</li>
<li>Descriptive (Arbitrary HTML/Text)</li>
</ul>
If you have found this plugin useful, please consider <a href="https://wordpress.org/support/plugin/zendesk-request-form/reviews/#new-post" rel="ugc">leaving a review</a>. Share some Zen 🙂
Languages / Localization
If you would like to translate the form into your language, please <a href="https://translate.wordpress.org/projects/wp-plugins/zendesk-request-form/dev" rel="nofollow ugc">click here</a>.

Request Form for Zendesk

It is actually a pretty-well build plugin that covers 80% of all zendesk-related issues. Been looking initially at Gravity Forms + Zendesk (by crmperks) combination and this one is much better coded. Also, custom fields are supported and that is a premium feature in competing plugins. Well done!

One thing I'd like to add here is support for Zendesk Tags. Sending tags with forms would make it so much easier to handle complex business logic.

Great plugin

Add a Zendesk Support Form directly to your WordPress site.

WordPress Page to Zendesk Article vs Request Form for Zendesk