Apparatus, system and methods for a media plan managing interface are disclosed. A data hierarchy for a media plan is defined. The multilevel data hierarchy includes different levels for orders and placements. An input form is provided to receive modifications to the values in the different levels of the hierarchy. Any modifications of data are compared against the permitted inputs provided through a conditional input field. If the modifications are permitted inputs, then they are accepted and conditional input fields are set up for any subsequent data input. The data hierarchy is stored as a media plan.