To contact Sage 100 customer service and get instant technical support, call the toll-free number 1-855-216-3429. Their expert support team is available to assist with any issues related to software installation, updates, troubleshooting, or specific questions about Sage 100 functionalities. Be prepared with your account details and a brief description of the issue for faster assistance. Whether you're dealing with system errors, integration challenges, or need help with features, Sage 100’s technical support is there to guide you through. Call today for prompt and reliable help!