https://github.com/melamriD365/CanvasApps-Controls/tree/main/ValueTurner

AccountForm.js

function openDialog(exectionContext) {
    var dialogParameters = {
        pageType: "custom",
        name: "new_dialogsample_bb2dc",
    };
    var navigationOptions = {
        target: 2,//use 1 if you want to open page inline or 2 to open it as dialog 
        width: 800, // value specified in pixel
        height: 420,
        position: 1,//1 to locate dialog in center and 2 to locate it on the side,
    }
    Xrm.Navigation.navigateTo(dialogParameters, navigationOptions).then(
        function () {
            let data = JSON.parse(sessionStorage.getItem("dialogKey"));
            console.log(data);
            // define notification object
            var notification =
            {
                type: 1,
                level: 1, //error
                message: data.context
            }

            Xrm.App.addGlobalNotification(notification).then(
                function success(result) {
                    console.log("Notification created with ID: " + result);
                    // perform other operations as required on notification display
                },
                function (error) {
                    console.log(error.message);
                    // handle error conditions
                }
            );
        },
        function (e) {
            //put your error handler here 
        });
}