VCF Operations 9.0.x
This behavior is a product limitation. In VCF 9.0.x, once a Microsoft CA is successfully configured for Management components, the system does not support reverting to the default OpenSSL certificate management workflow through the management interface.
There is currently no supported method to remove the Microsoft CA configuration or revert to default via the VCF Operations UI once the configuration has been saved.
Replace with Imported Certificate option if the integration is not currently working because of an issue with the CA server.Note: If you are interested in requesting that other options be added, you can vote on the vcf.ideas.aha.io/ideas/VCF-I-3972.