It is necessary to change the default encryption keys found inside the appsettings.json files for an application. The already existing keys found inside these files are generated by Avanade and these are not intended for normal use. It is therefore strongly advised to generate your own unique keys with the Setup tool.
| Most AMT web applications have a setting called "AmtCookieEncryptionKey" in their appsettings.json files. In Blazor Web Clients this key needs to match the key used by the AMT Application Center, other AMT Web Applications (such as Provided REST APIs) should have unique keys. |

![]() warning Do not use the key in the image |