The PendingUserState enumerated list includes various settings.

Table: PendingUserState

NoOrganizationboolean  Indicates no current organization state for the user.
SingleUserOrganizationboolean  Whether this is a single user organization.
MultiUserOrganizationOnlyOwnerConflictboolean  Indicates a multiple user organization, but with only an owner conflict.
MultiUserOrganizationNoConflictboolean  Indicates a multiple user organization, with no owner conflict.
UserExistsNoOrganizationboolean  Indicates the user exists without an organization.

[a] Some arguments may be required, as indicated in this column. For some fields, this column indicates that a result will always be returned for it.