How forecasting accounts for custom criteria

When you check inventory for a prospective line item that employs customised targeting criteria, keep the following in mind:

  • You need to add those key values to your ad tags and define them in your network at least seven days (though preferably 28 days) prior to running a forecast.

  • Regardless of whether the key-value only accepts pre-set values or also accepts free-form values, only those values that have been added 28 days prior to the forecast are fully accounted for when projecting inventory.

    For example, if you add a new predefined value (e.g. “chartreuse” in colour = chartreuse), forecasts fully account for that additional value after 28 days. This is because it needs to be included in the forecasting sample file.

If you change the customised criteria type from free-form to predefined, you'll need to wait another 7 – 28 days before running a forecast.