Bidirectional means that the data is transferred between system A and system B, i.e. in both directions. For example, you can seamlessly continue your process that starts in system A in real time in system B and run it back to system A again.
A schematic representation of a bidirectional integration can be found here.
Set up bidirectional plans
Like unidirectional plans, the Marini HubEngine allows you to set up bidirectional plans in just a few minutes using the intuitive user interface. The user interface offers many options and features that will most likely serve all your requirements.