This is a Redmine plugin that uses the Zendesk API to query a particular custom field (e.g. Redmine Issue ID) to pull in a list of associated tickets to the issue view. It has been tested with Redmine 2.6.x.
View the Project on GitHub raventools/redmine_zendesk_issue_bridge
Installs the same as any Redmine 2.x plugin. Please read this guide for basic tips.
./plugins folder (e.g. /path/to/redmine/plugins/redmine_zendesk_issue_bridge)bundle install to pick up the necessary GemsAdministration > Plugins to verify that the plugin is shownConfigure

example for example.zendesk.com)
git checkout -b my-new-feature)git commit -am 'Add some feature')git push origin my-new-feature)