The reiteration of a 'Buy' rating by a reputable analyst like Scott Berg from Needham is a positive signal for Salesforce. It indicates that the analyst believes the company's stock is expected to outperform the market or its sector in the short term. The maintained price target of $250 also suggests that the analyst sees potential for the stock's price to increase. This could potentially lead to a positive impact on Salesforce's stock price in the short term.