Quick blog post, there has been known issue in VMware Cloud Foundation 3.5, 3.7 & 3.8 that reports your SDDC manager license key as invalid as the below screenshot shows.
This has been listed in the “known issues” section of the release notes for each version, but there is no KB article for this.
Validation fails on SDDC Manager license.During the bringup process, the validation for the SDDC Manager license fails. Workaround: Enter a blank license and proceed. You can enter the correct license value later in the process.