The document discusses various factors to consider when budgeting for advertising, including: - Properly allocating the budget across communication objectives, targeted segments, and sales goals is one of the most challenging aspects of advertising budgeting. - Key parameters for allocating the advertising budget include media costs, sales territories based on factors like population and sales potential, ensuring sufficient total audience exposure across frequency and continuity of ads, and allocating budget across different products being advertised. - Common approaches to setting the advertising budget include top-down methods like allocating a percentage of sales or matching competitors' spending, or bottom-up methods like estimating costs of specific advertising objectives and tasks.