A method is provided for validating advertising metrics which relate to tracking of interactive events performed by electronic devices. A metric report with an event code that indicative of at least one interactive event performed by an electronic device associated with the network is received. The format of the event code is analyzed to determine whether the event code is consistent with predetermined format rules and the substance of information conveyed by the event code is analyzed to determine whether the event code is consistent with predetermined substance rules. If the event code is determined to be consistent with the predetermined format rules and the predetermined substance rules, the event code is accepted as valid. Otherwise, the event code is identified as being invalid.