New unassigned templates filter, individual notification fix and API

The templates overview now has an Unassigned item in the dropdown menu. It shows only templates that are not assigned to any folder. The item displays the count of such templates and the selection stays active even after refreshing the page. Users with many templates can easily find and organise templates outside the folder structure.

For individual subscribe and unsubscribe contact notifications, the notification was only sent when both addresses were filled in at once. Now it's enough to fill in just one of them ‑ the subscribe notification address separately, the unsubscribe one separately, or both together. The notification is sent based on which addresses are filled in.

Plan‑based accounts whose sending was blocked due to exceeding the contact limit were incorrectly shown a message about insufficient email credits in the bell notification. Now the correct information is shown ‑ that the number of contacts exceeds the plan limit, with a recommendation to upgrade the plan or reduce the number of active contacts.

We've released a new version of the Ecomail tag for server‑side Google Tag Manager. We fixed the data assembly when unsubscribing a contact. For unsubscribing to work correctly, the Update existing option must be enabled in the Data about user section of the tag template.

The POST /domains endpoint returned a generic 500 error with an HTML response when attempting to create a domain that already exists in the account. It now returns status code 422 with a readable JSON body that clearly states the domain already exists.

The web events endpoint (tracker/events) could fail if an incoming parameter exceeded the length allowed by the database. The value is now automatically trimmed to the allowed length and returned in that form in the response, so the request completes without an error.