Multi-organization security (MOS) is a feature that allows the system administrator to set up separate, secured, logical databases within the organization. There is one logical database for each organization; however, there is still one physical system database. To activate MOS, you must set the MULTIORG installation parameter to YES.
See Defining installation parameters.
After activating MOS, you cannot deactivate it. Depending on the type of security set up, users cannot view or influence data from organizations to which they do not belong.
With MOS, the system becomes more user-driven, rather than user-group driven, making it possible for users to have different roles. Associate users with more than one organization and establish a default organization for that user. The user’s default organization is shown at login, which can be changed to any organization to which the user has access. After logging in to a specific organization, users can view and influence data specific to all the organizations to which they have access and all information defined as "common," which is information accessible across all organizations and users.
When inserting new records, the record to the organization of the current login session is automatically defaulted; however, users can change the organization to any organization to which they have access.
MOS replaces facility security. Therefore, if you do not use MOS, Organization is not shown on any forms.
MOS affects many system functions, and some sections in the user documentation apply
only to MOS.