The objective of this research is finding the raw materials purchasing behaviors variables which effect on purchasing behaviors of entrepreneurs in Nakhon Ratchasima Province, Thailand. The raw materials purchasing behaviors have been identified in 5 variables, business size, business model, business duration, number of employees and estimated income. The research found that the initial investment more than 24,000 USD is 47.7 percentage, initial investment 3,030-24,000 USD is 34.1 percentage and initial investment 1,000-3,000 USD is 18.2 percentage. Entrepreneurs have their own brands is 81.8 percentage and franchisee is 18.2 percentage. The business duration 1-3 years is 34.1 percentage and more than 5 years is 25.0 percentage. Number of employees at 1-3 employees is 60.5 percentage and 4-6 employees is 23.7percentage. Estimated monthly income less than 3,000 USD is 43.2 percentage and 3,001-6,000 USD is 36.4 percentage. DAZE mobile application purchase intentions of café business entrepreneurs, the café business entrepreneurs have an intention to purchase DAZE mobile application. The entrepreneurs found that the DAZE mobile application will give them on the purchasing time reduction, cost reduction and raw materials quality improvement respectively. The service charge acceptable rate is 1.01-3.00 USD/time which considered acceptable for café business entrepreneurs. If the service charge rate is going high, it will directly effect on their production costs.