topic authentication key in Licensing

topic authentication key in Licensing https://community.graphisoft.com/t5/Licensing/authentication-key/m-p/358790#M390 <P>my authentication key is coming invalid , is the authentication key is <SPAN>Serial number ??</SPAN></P> Thu, 25 May 2023 16:26:03 GMT bhawna 2023-05-25T16:26:03Z authentication key https://community.graphisoft.com/t5/Licensing/authentication-key/m-p/358790#M390 <P>my authentication key is coming invalid , is the authentication key is <SPAN>Serial number ??</SPAN></P> Thu, 25 May 2023 16:26:03 GMT https://community.graphisoft.com/t5/Licensing/authentication-key/m-p/358790#M390 bhawna 2023-05-25T16:26:03Z