SSJS Function Reference
The Server-Side JavaScript function reference for Marketing Cloud Engagement lives on ssjs.guide — the A–Z index of Platform functions, the Core library, WSProxy, HTTP and the ECMAScript built-ins as the SFMC engine implements them.
The Server-Side JavaScript function reference lives on ssjs.guide, the specialist site for the language.
Open the SSJS function index →
Why SSJS has its own site
sfmc.guide is the umbrella reference for the Marketing Cloud developer surface — Engagement, Next, AMPscript, Handlebars, and the tooling around them. SSJS earns a site of its own because it is a language runtime rather than a template syntax: an ES3-era engine with its own missing and broken built-ins, its own polyfill catalog, and an API surface spanning Platform functions, the Core library, WSProxy and HTTP. Documenting that properly takes a full site, so it gets one.
Same authors, same runtime-verification discipline — both sites prove behaviour by running code on a live tenant rather than restating the official documentation.
What you will find there
| Section | What it covers |
|---|---|
| Function index | A–Z listing of every documented function, method and object |
| Platform Functions | The Platform.Function.* surface |
| Core Library | The object model loaded via Platform.Load |
| WSProxy | SOAP API access from SSJS |
| ECMAScript Built-ins | What the engine actually implements, and what silently misbehaves |
| Engine Limitations | The polyfills and workarounds the runtime needs |
Related
- AMPscript function index — the AMPscript half of the reference, here on sfmc.guide
- Function Index — entry point to both indexes
- Engagement — the wider Marketing Cloud Engagement developer surface