Open Boundary conditions

Hi, I have created open boundary condition on the west direction of my grid. When I tried to save then it showed warnings saying that cell to East is not active. How can I solve this problem? I have attached the screenshots of this problem. Thank you.

Hi PK,The actual North, West, South, and East side of the cell needs to be check in the “cell map” view. Thus based on how the grid face is oriented in cell map view, the open side may not always be the west side in your model.I’ve attached a cell map view example from one of our example models, the “N” “S” “E” “W” label on it was added afterward just for indication, so you won’t see that in EE interface.Thank you!Szu-Ting Lee

Thank you!!