After you started your Analytics and UI VMs of VCOPS, you should configure it.
Default username admin and password is also admin.
Root password of Analytics server is vmware
For UI, is vmware but once it was blank, there was no password.
Type your vCenter name and service account and password.
Old and new passwords must be typed here. Do not forget them
Which vCenter would you like to monitor?
Click next for Import data and wait until the configuration is finished