S-Control
A legacy Salesforce custom content component (deprecated in favor of Visualforce pages) that used HTML, JavaScript, and Ajax to create custom UI elements that could be embedded in page layouts or displayed in tabs.
Definition
A legacy Salesforce custom content component (deprecated in favor of Visualforce pages) that used HTML, JavaScript, and Ajax to create custom UI elements that could be embedded in page layouts or displayed in tabs.
In plain English
“S-Control is a legacy Salesforce custom content component that used HTML, JavaScript, and Ajax to create custom UI elements. It's deprecated in favor of Visualforce pages, which is itself now being superseded by Lightning Web Components. So S-Controls are very legacy.”
Worked example
a senior developer at TerraForm Tech uses S-Control to solve a complex business requirement that cannot be addressed with declarative tools alone. They implement S-Control with proper error handling, write 98% test coverage, and document the solution for future maintainers. The code passes security review on the first attempt.
Why S-Control matters
S-Control is a legacy Salesforce custom content component (deprecated in favor of Visualforce pages) that used HTML, JavaScript, and Ajax to create custom UI elements that could be embedded in page layouts or displayed in tabs. They were the original mechanism for custom UI in Salesforce before Visualforce existed, and have been deprecated for many years.
Knowing about S-Controls matters mostly for understanding very old Salesforce documentation and for organizations with extreme legacy customizations. Modern Salesforce development uses Lightning Web Components for new work, with Visualforce remaining for some scenarios. S-Controls should be migrated to modern alternatives if any still exist in production orgs.
How organizations use S-Control
Helps clients with extreme legacy customizations migrate any remaining S-Controls.
Treats S-Control references as ancient legacy signals.
Trains developers on modern alternatives, noting S-Control as historical context.
🧠 Test your knowledge
Q1. What is an S-Control?
Q2. Should you use S-Controls today?
Q3. What's the modern alternative?
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