Imperva Cyber Community

How to delete or remove old perpetual license from mx and upload maintenance license

Hello Pius,
Normally you would not need to remove an old license to upload a new one, even if you're switching from Perpetual to Subscription based licensing.  See the link below for instructions on applying a new license.  If the MX refuses to accept the new license or says there's a conflict with the perpetual license, there is a procedure you can follow to wipe all licenses from the MX and start fresh.  You'll want to open a support case if you need to do that, they will send you the correct procedure for your version of the MX.

Scroll to the bottom where it says update and existing license
https://docs.imperva.com/bundle/v14.15-dam-administration-guide/page/6716.htm