One of the main errors in CVP analysis is assuming that the costs, prices, and sales volume are linear, constant, and independent of each other. To avoid this, you should recognize that there may be nonlinearities, uncertainties, and interdependencies in the real world, such as economies of scale, learning curves, price elasticity, sales mix changes, and external factors. You should also use sensitivity analysis, scenario analysis, and simulation techniques to test and evaluate the effects of different assumptions and variables on the CVP outcomes. Another common error in CVP analysis is ignoring the qualitative aspects of the business decisions, such as customer satisfaction, brand loyalty, market share, and competitive response. To avoid this, you should complement your CVP analysis with other tools and criteria, such as customer value analysis, market segmentation analysis, SWOT analysis, and balanced scorecard, to capture the holistic picture of your business situation and goals.