Web Service
CRM and HRMS
Customer and staff systems on the web: a CRM for sales, and an HRMS for the people who run the company.
The CRM keeps leads, follow-ups, and the pipeline in one place, so an enquiry from the website has an owner and a next step.
The HRMS keeps staff records, attendance, and leave off the shared spreadsheet. Both are web systems your team logs into, with roles for who may see what.