GitHub Code Suggestion Application Restrictions: When Your Suggestions Won't Apply

This concise text outlines numerous scenarios where code suggestions cannot be applied in GitHub's code review system. These include no code changes, closed pull requests, viewing subsets of changes, multiple suggestions per line, suggestions on deleted lines, invalid suggestions, already applied or resolved suggestions, suggestions from pending reviews, suggestions on multi-line comments, pull requests queued for merge, and temporary system unavailability. In short, GitHub imposes strict limitations on applying code suggestions to ensure code review integrity and efficiency.