Second, a company can compute ROMI foe individual marketing activities. This helps a company learn from its marketing efforts and invest more in marketing tactics that generate a high ROMI while ending marketing efforts that have low or negative ROMI. In practice, however, computing an accurate value of ROMI for individual marketing activities is difficult because it implies measuring the individual contribution of each marketing activity on incremental changes in sales and income. Attributing financial returns to individual marketing efforts can be difficult, especially within holistic multifaceted marketing campaigns. Moreover, marketing efforts can have delayed or indirect benefits (such as greater brand awareness and increases in visits or time spent on the site) that are underappreciated by strict financial metrics such as ROMI.