The VMware vSphere 7.x (2V0-21.20) exam is associated with the Certificate VCP-DCV 2023. If you are not valid VCP Certification holder, you need join the related required training course. See on the below link detail.
https://www.vmware.com/learning/certification/vcp-dcv.html
If you are VCP-DCV 2022 or Newer certified, the training are just optional.
If you are match with all requirement, you will receive a mail from certmetrics within (maybe) 72 hours after you finished the exam successfully.
You can also track all your certificates at https://www.certmetrics.com/vmware.
Regards,
UZM