Builder's guide

Building Your Own Console on GAAPcore

How to give your business its own accounting screens, workflow and controls, with GAAPcore keeping the books correct underneath.

Who it's for: a business owner who wants their own console, and the developer or coding agent who builds it.

Written against: GAAPcore API 0.1.0, database schema v107 (November 2026). The reference console is gaapcore-console, pinned to the same version.

How to read it: sections 1–4 are for everyone. Sections 5–8 are the technical setup. Sections 9–13 describe the screens and controls. Sections 14–17 cover the build plan, testing and checklists.

Start reading   or download the PDF

Contents

1. 1 Who this guide is for
2. 2 What GAAPcore is, and what it is not
3. 3 How the pieces fit
4. 4 Decide before you build
5. 5 Set up GAAPcore
6. 6 Register your console as a writer
7. 7 The rules every request follows
8. 8 Your people: sign-in, roles and the audit trail
9. 9 Screens accountants trust
10. 10 Controls and approvals belong to your console
11. 11 Map your business to GAAPcore
12. 12 Going live
13. 13 Month-end close and statements
14. 14 A recommended build order
15. 15 Testing and upgrading
16. 16 Security checklist
17. 17 Common mistakes
18. A A complete request, end to end
19. B Error codes you will meet first
20. C Glossary and further reading