Integrate with Trello

This topic explains how to integrate TestRail with Trello. There are currently four ways to integrate TestRail with Trello, namely:

  • Using defect URLs to link test results to Trello
  • Using reference URLs to link test cases to Trello
  • Using the defect plugin for Trello to push and look up Trello issues in the Defects field of test results
  • Using the reference plugin for Trello to look up Trello issues in the References field of TestRail entities such as test cases, test runs, and milestones

You don’t have to use all listed integration options, and you can mix and match the integration with other tools. Configuring the integration usually only takes a few minutes. This guide explains how to configure the integration and how it works.

Defect URLs

The defect URLs are used to let TestRail know how to convert a Defect ID into a URL for your Trello instance.

The Defect Add URL is used to create a link to the issue creation screen inside Trello. Once the URL is configured, a new Add link appears next to the Defects field in the Add Test Result dialog and the ‘Defects’ menu in TestRail’s Push Defect From Anywhere feature. This link allows you to jump to Trello’s New Issue form to report a new bug.

If you see the ‘Add’ link, you can copy the ID of your new Trello issue and enter it into any Defects or References field inside TestRail.

You can configure Trello’s URLs in TestRail globally under Administration > Integration or on a per-project basis within any project’s settings.

Defect and Reference Add URLs can be account-specific URLs or board-specific URL. Use the following example URLs to configure the addresses:

Trello installation
Account-specific URL:<account>/boards
Board-specific URL:<shortLink>/

The integration with Trello does not support Defect or Reference View URLs (Trello’s URL structure does not support a direct link to a card). Defect and Reference Add URLs can be a board, space, or any other Trello URL you prefer.

If you have the defect plugin configured, you’ll also be able to hover over the defect ID to view the issue details directly from within TestRail and then click on the hover details to be taken directly to the card’s board in Trello.

Reference URLs

The reference URLs are implemented in a very similar manner to Defect URLs described above. The primary difference is Reference URLs are used for the ‘References’ field on various TestRail entities (instead of the Defects field).

The Reference  Add URL is also configured in the same way as the Defect Add URL. Once configured, an ‘Add’ link will appear next to each References field in your instance or project. If you use the ‘Add’ link, you can copy the ID of your new Trello issue and enter it into any Defects or References field inside TestRail.

If you have the Reference plugin configured, you’ll also be able to hover over a Reference ID to view the issue details directly from within TestRail. Keep reading to learn how to use and configure the Defect and Reference Plugins.

Defect plugin

Defect plugins can be used to implement a deeper bug tracker integration and TestRail comes with a ready-to-use Trellodefect plugin. To configure the defect plugin, select Administration > Integration and select Trello in the Defect Plugin drop-down list. The next step is to configure all the necessary connection settings in the [connection] category. You can also configure the integration for a specific project by editing a project’s settings.

The Defect Plugin utilizes Trello’s API, so valid credentials are needed to connect to the API. You can enter a single set of credentials here for all Trello users or you can insert User Variables to allow each TestRail user to configure their own credentials. These credentials may be a combination of an email address or username with a password or API key.


We strongly recommend configuring User Variables. You can learn more about configuring these in our User Variables documentation.

With the Defect Plugin configured, the option to push a new defect will appear in the Defect from Anywhere menu, as well as in the Add Result dialog within a test run. This dialog allows you to create a new issue in Trello without leaving TestRail.


The Trello defect plugin was built to work with a standard Trello configuration. TestRail allows you to customize the fields which appear in the Push dialog as well as when hovering over Defect IDs. Preconfigured push fields and hover fields can be set to ‘on’ or ‘off’ in their respective [push.fields] and [hover.fields] sections, or change the order in which they appear by the fields in each section.

Please keep in mind some fields (such as the title field) are always enabled and may not appear in these sections due to always beings required by either TestRail or Trello.

The Trello Defect Plugin also supports modifying field properties as well as custom fields.

In addition to enabling, disabling, or re-organizing fields as described above, it’s also possible to change additional options per field. To do this, you would define a section for the field, such as [push.field.description] and specify additional options within this section.

label=Detailed Description

Please see below for full list and explanation of the available field options:

Option Description
api_type Further defines dropdown lists. Leave blank (e.g. ‘api_type=’) for non-drop-down fields. If the type is set to ‘dropdown’, then ‘api_type=dropdown’ for a standard drop-down, or ‘api_type=checked’ for a checklist. (Required for custom fields)
idCustomField Documentation for determining this value can be found here (Required for custom fields)
label Specifies the display name of the field in the Push Defect dialogue (Required for custom fields)
size Specifies whether the field is displayed as a compact field (compact) or uses the full width of the dialogue (full)
remember Specifies if previously selected values for this field should be remembered and restored the next time the Push Defect dialogue is opened
required Specifies if this field is mandatory or optional and whether users are required to enter a value for this field in the Push Defect dialogue
type Specifies the type of this field, please see section Custom fields below for a list of supported field types (Required for custom fields)

Custom fields

You can also use the above-mentioned approach to add custom fields to TestRail’s Push Defect dialogue. To do this, simply add a line with your custom field to the [push.fields] section to add a field. Custom fields are designated by customfield_<field_name>.

# ...

Then, add a [field.settings.customfield_<field_name>] section. This section is required so the plugin can push and/or retrieve data from your tool. <field_name> can be any value, as the field’s properties will be defined in the corresponding section. The following is an example:


The following field types are supported:

Field Type Description
bool A Yes/No dropdown menu for True/False, Yes/No, or similar binary values
date A string field that accepts a YYYY-MM-DD or similarly structured date value. Formatting may depend on the integrated tool’s requirements
datetime A string field that accepts a YYYY-MM-DD HH:MM or similarly structured date and time value. Formatting may depend on the integrated tool’s requirements
dropdown A dropdown list that allows users to select one of the multiple options
integer A whole number. The maximum value is based on your external tool’s limits
multiselect Allows users to select multiple, pre-defined options
string A small free-text field for up to 250 characters
text A large free-text field without practical size limitations


The Trello Defect Plugin supports submitting attachments to Trello as well. This field can be turned on and off, but cannot be customized. To submit one or more attachments to Trello, simply drag the attachment to the attachments or description areas of the push dialog or click on the area to choose an attachment from your file system.

Reference Plugin

Reference plugins can be used to retrieve additional information from IDs entered into the References field of TestRail entities, such as test cases, test runs, and milestones. The Reference Plugin is configured on the References tab of the integration settings in the same manner the Defect Plugin is configured.

The plugin supports hovering over Reference IDs but does not support a Push dialog for the References field. It is also possible to customize the fields which appear via link hovering and add custom fields, as described above.

If you have the Defect Plugin already configured for Trello, you can simply copy your [connection] and [hover.fields] sections from the Defect Plugin into the Reference plugin configuration. Alternatively, you can choose different fields to be displayed for References and Defects.

Additional Customizations

TestRail also supports custom defect plugins. If your team uses TestRail Server, it is possible to further customize the defect plugin (or build your own) to support additional field types or other data. Please see our Defect plugins documentation for additional information.

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