(Reuters) - Chocolate maker and cocoa processor Barry Callebaut on Wednesday reported a lower sales volume than expected for its first quarter, hit by customer-retailer pricing negotiations and delayed orders amidst record high cocoa prices.

The Switzerland-based group, which supplies chocolate for Unilever's soon-to-be-spun-off Magnum ice creams and Nestle's KitKat bars, said its sales volume fell 2.7% to 565,000 tonnes in the quarter that ended on Nov. 30, compared with analysts' forecast of 568,000 tonnes in a company-provided consensus.

(Reporting by Paolo Laudani in Gdansk; Editing by Milla Nissi)