| ERROR | subscriber string is marked for removal |
| CAUSE | An administration operation was attempted for a subscriber which is marked for removal. If attempting to remove a subscriber, the Messaging Gateway agent is not running or is running but unable to remove the subscriber at this time. |
| ACTION | Do not issue propagation administration commands for a subscriber for which removal is pending. Wait for the subscriber to be removed by the agent or issue REMOVE_SUBSCRIBER with the FORCE option to force the subscriber to be removed. |