A method to visually represent change conflicts between a plurality of changes within the network of retail stores on a display of a user device is disclosed. One of a change identifier or a store identifier is received from the user device. The user device is instructed to display a change calendar including a plurality of calendar blocks representing changes for one or more of the retail stores. A request to add or modify a change is received from the user device. The user device is instructed to display the change calendar according to the request. One or more of a color coding or an indicator are displayed to indicate whether a conflict is present between the change of the request and one or more of the other changes for the one or more retail stores.