Inline S-Control
A legacy Salesforce feature (deprecated) that allowed embedding HTML-based S-Controls directly within page layouts, now replaced by Visualforce pages and Lightning components for inline custom content.
Definition
A legacy Salesforce feature (deprecated) that allowed embedding HTML-based S-Controls directly within page layouts, now replaced by Visualforce pages and Lightning components for inline custom content.
In plain English
“Inline S-Controls were a deprecated way to embed HTML S-Controls directly within page layouts. Like all S-Controls, they're long retired and replaced by Visualforce pages and Lightning components for inline custom content.”
Worked example
Foxford Software's legacy Salesforce Classic org has two Inline S-Controls embedded directly in page layouts - small HTML/JavaScript widgets that rendered custom dashboards next to record fields back in 2009. Inline S-Controls (and S-Controls generally) have been deprecated for over a decade. The platform team is rewriting both as Lightning Web Components hosted in Lightning record pages. Inline S-Controls are an archaeological feature; modern equivalents are LWCs with @api decorators for embedding.
Why Inline S-Control matters
Inline S-Controls were a legacy Salesforce feature that allowed embedding HTML-based S-Controls directly within page layouts, providing custom content alongside standard fields on a record page. They were used for custom UI elements, calculated displays, and lightweight integrations before Visualforce existed. Like all S-Controls, they were deprecated when Visualforce was introduced and have been formally retired for years.
Modern equivalents include Visualforce pages (which can be embedded in page layouts via the inline Visualforce feature), Lightning components (which can be added to Lightning record pages through Lightning App Builder), and Lightning Web Components (the current standard for custom UI). Encountering Inline S-Controls in an org is a strong signal that the org is overdue for modernization. Any new inline custom content should be built as Lightning Web Components.
How organizations use Inline S-Control
Encountered Inline S-Controls during a modernization audit of a 15-year-old Salesforce org. They rebuilt the functionality as Lightning Web Components.
Treats any reference to Inline S-Controls as a flag that the system needs serious modernization.
Trains developers that S-Controls of any kind are pure history and should be migrated immediately when encountered.
Test your knowledge
Q1. What were Inline S-Controls?
Q2. What's the modern replacement?
Q3. Should you use Inline S-Controls today?
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