the AMS filing 2Z status notification code stands for Master/House Container Mis-Match, which is Generated as a result of a comparison between the Master and House reported containers. Those containers that exist against either the Master or House that do not have a corresponding match will receive this message. The container in error will be reported in the R02 Container Number field. How to Handle it? You can compare the container information between House AMS and Master AMS, especially the container no.