How do you enable Web Presence builder for customers via OBAS?
First, it is required to create Sitebuilder plans.
Then, to enable Web Presence Builder option in Plesk Domain Hosting Plan Billable Resources. Go
Top > Billing Director > Product Manager > Hosting Plans > Plesk Domain > Billable Resources and set Number of Sites published with SiteBuilder as it is needed.
To add a Sitebuilder service to the Hosting Plan, go to the Hosting Plan settings, Parallels Plesk Sitebuilder tab, click the Edit button, and on the page that opened check the Enable Sitebuilder service for this hosting plan box, select the Sitebuilder plan and enter its fees.