Visual WebGui OEM / SaaS license agreements are required when your application combines Visual WebGui (VWG SDK which is the core of all Visual WebGui's development environments) and is distributed to more than 5 end user organizations or servers as SaaS. Organization is an entity which acts as an end-user of the application, or uses the application as SaaS, whether by an individual or multiple users within the corporation, company, partnership or any other entity.
For example if the combined application (your application plus the VWG SDK) was sold to 5 organization only, you don’t need an OEM License, however if you sell it to more than 5 different organizations, you will have to distribute it with VWG OEM license.
Similarly, if you choose to provide a service using an application that combines the VWG SDK, and you have more than 5 users from different organizations, you will have to distribute it with VWG OEM agreement.