Bubble.io Data Model Design: The Complete Guide for SaaS Founders
The biggest mistake Bubble builders make is opening the editor before designing the data model. This guide teaches you how to design a SaaS data model correctly — on paper, before you touch Bubble — so you never have to refactor it later.
Design the Data Model Before You Open Bubble
Every Bubble SaaS rebuild we have ever seen had the same root cause: the builder opened the editor, created a few data types, started building pages, and then discovered three weeks later that the model cannot support the feature they need to build next. The fix required changing field names, breaking existing workflows, and rebuilding pages that depended on the old structure. This is always avoidable. A few hours of upfront design on paper eliminates weeks of downstream pain.
The One Rule of Data Model Design
Design your data model by asking: “What are the things in my product?” Every distinct thing becomes a data type. Every property of that thing becomes a field. Every relationship between things becomes a relationship field. That is it.
The Six Foundation Data Types Every SaaS Needs
Every App Data Type Must Have a Workspace Field
This is the most important rule in Bubble SaaS architecture. Without it, your privacy rules cannot enforce tenant isolation. With it, every search, every display, every workflow is automatically scoped to the correct workspace.
Project:
workspace → Workspace ← MANDATORY on every type
name → text
created_by → User
is_deleted → yes/no ← always soft delete
// On creation: always set workspace
Create Project Step:
workspace = Current User’s current_workspace
// On every search: always scope
Search for Projects:
workspace = Current User’s current_workspace
is_deleted = no
Option Sets vs. Data Types — Know the Difference
Get Your Data Model Reviewed Before You Build
30 minutes of architecture review before you start can save 3 weeks of refactoring later.
