In the process, I used many CRM systems. To date, I think Friday CPM is the most convenient option. Considering that recently they offer a free version for https://fridaycrm.com/blog/free-crm-for-nonprofits/ and more and more adds to their system with chips, simplifying the life of users. It really pleases. It is convenient to organize the work of employees who work outside the office or work in branches. In general, the system is excellent, I advise you to work!