Probability score: 0.7  

Question improvement suggestion: Please provide the exact version of Trados Studio you are using and any specific error codes or messages you receive when attempting to use the DeepL API.  

In the meantime, based on the information you have provided, here is a suggested answer to your question:  

Hello,  

To resolve the "Deepl API Authorization failed" issue, please follow these steps:  

**Step 1:** Verify that you have the latest version of Trados Studio 2021 installed. You can check for updates by going to Help > Check for updates.  

**Step 2:** Ensure that you have the latest version of the DeepL API plugin installed. Uninstall the current version under Add-Ins > RWS App Store > Installed plug-ins, and then download and install the latest version from the RWS App Store.  

**Step 3:** Double-check that you have a valid DeepL Pro account and that the API key you are using is correctly copied from your DeepL account settings. Make sure there are no extra spaces or characters when you paste the key into Trados.  

**Step 4:** In Trados Studio, go to Project Settings > All Language Pairs > Translation Memory and re-enter the API key to ensure it is correctly configured.  

**Step 5:** Check the health status of your DeepL Machine Translation Provider in the RWS App Store. If it shows "Not Configured," click on the DeepL Machine Translation Provider to check its configuration and validate the saved configuration.  

**Step 6:** If the issue persists, consider creating a new DeepL API key from your DeepL account and updating it in Trados Studio.  

If you follow these steps and still encounter issues, please provide any specific error messages or codes you receive, as this will help in diagnosing the problem further.  

I hope this answer addressed your question. If not, please reject the answer, add the question improvement suggestion information, and click the RWS Community AI checkbox on the right to try again.  

RWS Community AI