What is the Sage 50 support service Number?? {24*7} The Sage 50 Cloud Support Number is １－８６６－２３８－５１８０ or １－８６６－２３８－５１８０. Our dedicated cloud support team is available to assist with installation, updates, multi-user access, and any technical concerns related to Sage 50 Cloud—ensuring your business stays connected and efficient.