Coke Warns of Slack Sales for a Year or So
Coca-Cola, suffering from weak sales in North America and other important markets, will sharply scale back its projections for amount of beverages it expects to sell in future years and profit it hopes to generate; chief executive E Neville Isdell promises to improve company's long-term profitability eventually, but warns that 2005 will be 'transition year'; says company is concentrating on sales volume growth of 3 percent to 4 percent, instead of earlier targets of 5 percent to 6 percent; operating income is expected to increase 6 percent to 8 percent, compared with earlier target of 10 percent; growth targets do not apply to 2005, which is expected to fall short; Isdell warns investors that they should not expect to see any significant improvements in results for 18 to 24 months; plans renewed emphasis on marketing and advertising; Coke plans to add $350 million to $400 million to its annual marketing budget starting next year; photo (M)