This is the RowStatus column governing creation and deletion of a customer's row in the customer table, whose valid value tracks customerAdminStatus the same way channelRowStatus tracks channelAdminStatus. A provisioning system walks this from notReady through active as a new subscriber is onboarded, so a row stuck at notInService alongside an unlocked customerAdminStatus points to an incomplete customer setup that needs attention. When adding a new subscriber account, the system creates the row as notReady(3), then sets it to active(1) once the customer's line and entitlements are fully configured.