A contact table is easy to build. A usable CRM is an operations system.

The difficult part is not storing a name and email address. It is preserving context as work moves between people, organizations, deals, tasks, notes, imports, reports, and follow-up. That requires deliberate data modeling and product decisions.

Model relationships, not isolated records

A customer may belong to an organization. An organization may have several contacts. A deal can involve multiple people, tasks, notes, and status changes.

If those relationships are flattened into one spreadsheet-like table, duplicate data and contradictory updates appear quickly. Define stable identifiers and explicit relationships early.