If you encounter a "400: Bad Request" error when clicking a link within an email activity, it is likely due to the link not being properly whitelisted. This article explains the cause of this issue and how to resolve it.

Reason for the error

This error occurs when the link in the email activity has not been whitelisted. One common scenario is when a link is inserted using Taguchi’s personalisation tag that was not present when the activity was created. Due to this, the automatic whitelisting process does not detect the link, resulting in the error when clicked.

How links get whitelisted in an activity

Links in an activity can be whitelisted in the following ways:

1. Automatically: Links are automatically whitelisted when creating or updating a revision of the activity.
2. Manually: Running an activity check while the link is present in the activity ensures it is whitelisted.

How to fix the issue

To resolve the "400: Bad Request" error, follow these steps:

1. Ensure the link is added to the activity.
2. Update the activity revision by saving it after adding the link, or run an activity check while the link is present to manually whitelist it.
3. Test the fix by sending yourself a proof email and clicking the link inside the email activity.

Once these steps are completed, the link should function correctly without displaying the error.

The "400: Bad Request" error is typically caused by a missing whitelisting step for links in an email activity. By ensuring links are properly added, updating the activity revision, and running an activity check, you can prevent and resolve this issue effectively.

If the problem persists, consider reaching out to https://taguchi.com.au/support for further assistance.