Is this really such a hard question to answer?
Sorry for delay in response. Actually I was in coordination with development to get some certain information regarding the support of license in Azure environment. As per our understanding, the license should work in Azure environment and in case you encounter any issue, please feel free to contact. We are really sorry for this delay and inconvenience.
FYI, Before you purchase the license, you may also try requesting a 30 days Temporary license and try using it. Please visit the following link to get more information on how to Get a temporary license
PS, Also please share that for which product you would like to use in Azure environment?