Correction Certifications

Salesforce Platform Developer I (PD1) Exam Study Guide

Corrected by Melik Can Sariyer · on Pass4Sure · 11 July 2026 · View published page ↗

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The exact change

Before

"Understanding when to use SOQL versus SOSL is a frequent exam question. Use SOQL when you know which object to query. Use SOSL when you need to search across multiple objects or when you have a text search requirement." -- Trailhead, Salesforce Developer Documentation / "Lightning Web Components is the future of Salesforce UI development, but Visualforce is still relevant in exam and real-world contexts. Study both, but prioritize LWC. Expect 60-70% of UI questions to focus on LWC." -- David Liu, Salesforce Developer and author of Salesforce Developer Certification Study Guide / Reference list entry: Liu, David. Salesforce Developer Certification Study Guide. Apress, 2022.

After

Understanding when to use SOQL versus SOSL is a frequent exam question. Use SOQL when you know which object to query. Use SOSL when you need to search across multiple objects or when you have a text search requirement. / Lightning Web Components is the future of Salesforce UI development, but Visualforce is still relevant in exam and real-world contexts. Candidates should study both, but prioritize LWC, since the majority of UI-related exam questions focus on it.

Suggested change

De-attributed both quotes to plain unattributed prose preserving the underlying claims; removed the fabricated 'David Liu' book reference-list entry entirely since the author identity is confirmed invented across two articles with inconsistent book titles.

Why this is better

De-attributed a quote incorrectly attributed to the generic institutional source 'Trailhead, Salesforce Developer Documentation' (not a specific citable article) and a quote attributed to 'David Liu' with an unverified 60-70% UI-question statistic. The 'David Liu' persona is confirmed unverified: a sibling article (salesforce-administrator-exam-automation-security-topics) attributes the same name a different, conflicting book title. Removed the now-orphaned David Liu reference-list entry entirely.

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