Lab briefing · Extend, then update

Build a SMALL EXTENSION, then work out EXACTLY WHAT YOU WOULD TEST IN AN UPDATE WINDOW AND HOW LONG IT WOULD TAKE. The second half is the lab. Building a small extension is an afternoon; discovering what owning one actually costs is the thing worth taking away. BUILD SOMETHING GENUINELY SMALL AND ENTIRELY SUPPORTED. A region on a page showing data from a REST call, or a field of your own beside a delivered record. Nothing reaching into internals — Lesson 2 — because the point of the lab is the maintenance cost of a well-behaved extension, not the risk of a badly behaved one. THEN WRITE THE UPDATE CHECKLIST, AND WRITE IT SO SOMEBODY ELSE COULD RUN IT. Which environment, which page, what to look at, and what a correct result looks like. Name VALUES rather than presence — Lesson 6 — because "the region renders" passes on a…

In this module: Module 13 · Extending Fusion applications

1. 1Extending against building beside
2. 2What an extension can change
3. 3The workspace and the lifecycle
4. 4Where this meets Page Composer
5. 5Sandboxes and coordination
6. 6Testing an extension
7. 7Surviving a quarterly update
8. 8When to stop extending
9. 9What breaks: three extension failures
10. 10Lab briefing · Extend, then update