Role collections are created in the Perform Post-Booster step of the product setup. This step involves running the Work Zone Configurator, which creates the role collections for SAP Build Work Zone and SAP SuccessFactors Work Zone.These role collections are used to assign authorizations to users and groups on the SAP BTP subaccount level1.Reference:1: Explaining the Provisioning of Users and Roles in SAP Build Work Zone, https://learning.sap.com/learning-journey/implement-and-administer-sap-build-work-zone/explaining-the-provisioning-of-users-and-roles-in-sap-build-work-zone_f81cff40-ea59-49fc-8c9e-65f68b63a812