PBA-S collects data about clients and domains on Plesk servers registered in PBA-S in the following cases:
- New Plesk server is registered in PBA-S
- Every 30 minutes Plesk collector is being run by default
So, if you created new domain or client directly in Plesk panel then it may take up to 30 minutes before it will appear in PBA-S control panel. If you have a lot of new domains created after last Plesk collector running then it could take a bit longer because PBA-S needs some time to get all new objects from Plesk server.