February 17, 2026 · 8 min read

How to Lock Cells in Google Sheets Based on Cell Value

Google Sheets' built-in protection is all-or-nothing. Learn how to conditionally lock cells based on another cell's value — using Apps Script or the no-code SheetGuard approach.

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February 17, 2026 · 9 min read

Advanced Data Validation Rules for Google Sheets: Beyond Built-in Options

Built-in validation covers dropdowns and number ranges, but what about cross-column conditional requirements? Explore advanced validation techniques for real-world workflows.

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February 17, 2026 · 7 min read

How to Prevent Edits in Google Sheets Without Writing Scripts

Compare four methods to restrict edits in Google Sheets — from sharing permissions to conditional protection — without writing a single line of code.

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