Customer Relationship Management, abbreviated CRM, is crucial to companies, no matter of their size and organizational structure. However, almost every CRM system, which help companies in adopting this methodology are designed primarily with large companies in mind. Because of that, instead of helping them, CRM systems for small businesses represent a burden, because majority of CRM systems are "forcing" small businesses to redirect their attention to the CRM system rather than to the user. As a temporary solution, which usually become a permanent solution, small businesses have started using a spreadsheet calculator as a replacement for CRM system. Spreadsheet calculators have certain advantages as a CRM system using in small businesses, primarily because of its ease of use. But they also have some big drawbacks. The biggest drawback is the limitation of simultaneous usage by multiple users. There is also existence of number of file copies, which lead to different versions of the information in those files. The "Business Contact Manager" tool tends to retain ease of use provided by Spreadsheet calculators and enables simultaneous work of multiple employees, and actual information is always available to all users no matter of device they are using to access the tool, either computers and mobile devices.