Budgeting for SEM Success
The degree of control, relevance and accountability that can be achieved through search marketing simply can't be matched with any other online or offline campaign. However, with great performance comes great unpredictability as marketers face difficulty in forecasting appropriate search marketing budgets. Search marketing is part of a complex ecosystem where a variety of metrics such as clickthrough rate, search volume, seasonal demand fluctuations and the influence of social network trends can dramatically change the complexion of the market.
This confluence of internal and external factors makes it notoriously difficult to forecast SEM spending. Managing budgets and reigning in the unpredictable requires a flexibility of approach that's unfamiliar to most traditional or even digital marketers. There are of course multiple ways for marketers to tackle this problem.
The Marginal Returns-Focused "Blank Check" Approach
For campaigns where measurable return on investment is the end goal, a "blank check" approach treats spending as a revolving door that keeps self-funding until the returns fall out of a desirable range and diminishing returns kick in. Not surprisingly, agencies and professional search marketers favor this approach, as it consistently leaves minimal opportunity on the table and can automatically reward good performance with additional budget.
For clients, flexibility with spending amounts helps to ensure returns are able to be maximized on the fly. By targeting ROI regardless of spend, agencies are also pushed to greater efficiency. If they can't bring you enough conversions, you simply offer them less of the budget to spend.
The Forecast Calls For …?
While you can't predict the weather, you can make relatively accurate forecasts with available information. Likewise, setting a budget based on data from widely available forecasting tools is another reasonable budgeting approach. Branding and awareness campaigns lend themselves to a forecasted budget approach as they might be harder to track and measure to determine true ROI.
Related story: The Growing Problem of Ad Self-Serving on Google