You can use SCIM version 2 for user provisioning in this scenario. SCIM (System for Cross-domain Identity Management) is a standard protocol for exchanging identity information across different cloud applications. Netskope supports SCIM version 2 and can integrate with identity providers (IdPs) that follow the same standard, such as Microsoft Azure AD, Okta, OneLogin, and Ping Identity. You can use SCIM to provision users and groups from multiple Active Directory forests to a Netskope tenant. The other options are not valid for this scenario. The Netskope Adapter Tool and the Netskope virtual appliance are used for user identification, not provisioning. They can only connect to one Active Directory forest at a time.You do not need to migrate to Azure AD or Okta to provision users, as Netskope supports other IdPs that use SCIM as well.Reference:Provisioning Users for Netskope Client1,SCIM Integration2