PCF Controls or JavaScript: Choose the Supported Fit

TL;DR

Use PCF for reusable custom interfaces such as sliders, dials, calendars, maps or specialized data views. Use JavaScript for supported model-driven form events such as load, change and save. Check app and field support, package and test releases, and enforce critical rules server-side because client-side behavior does not secure data.

Original by Softchief Author, on Softchief Technologies. Read the original

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Governance takeaway

• Makers: Choose PCF for a reusable custom interface and JavaScript for focused model-driven form behavior; use supported APIs and avoid direct DOM changes.
• Admins/CoE: Define packaging, environment settings, release approval and long-term ownership before implementation, then test imported customizations in the target app.
• Security/Compliance: Treat field hiding and browser validation as user guidance only; use platform permissions and server-side enforcement for critical data rules.