DeepL API key authorization failed

Hi,

Our DeepL plugin for Trados is not working anymore. We are getting an error message that our API keys are invalid, but when we check our accounts, we see "Your account is active. You can use DeepL Pro with this account." The key itself is also visible. Uninstalling and re-installing the plug-in also doesn't help. DeepL support responded " contact your plug-in provider, as we cannot provide technical support for third-party plug-ins".

DeepL Translation Provider settings window showing an error message: 'Authorization failed. Please supply a valid API Key.' Various translation options and settings are visible.

Can you help us?

Thanks,

Leni



Removed AI Suggestion
[edited by: Leni VERBOGEN at 12:47 PM (GMT 0) on 17 Mar 2026]
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