We've seen this question in various forms for years, and it keeps coming back because the tools we rely on weren't designed for this simple, real-world need. The user wants a single cell that accepts either a whole number or the text "N/A," without letting anything else slip through. Data validation alone won't do it, turn off the error message, and you lose the guardrails. Build a custom list, and you're stuck enumerating every possible number, which is impractical when the range is wide and unpredictable. The instinct to reach for an IF statement is understandable, but it treats the symptom, not the constraint.
The real issue here is that traditional spreadsheets force you to choose between flexibility and control. You can either lock down the input with validation, sacrificing the ability to handle legitimate edge cases like "N/A," or you leave the cell open and trust users to type correctly. Neither option serves the user's actual workflow. They need a third path: a validation rule that says "whole number OR this specific text," not "whole number or anything goes." That's a fundamentally different logic than what the standard data validation menu offers, and it's the kind of gap that an AI-native spreadsheet should fill without requiring workarounds.
What this user is really asking for is a smarter boundary. They want the cell to know what belongs there, not just what format to accept. In an AI-powered environment, that's not a stretch, it's a natural next step. Instead of forcing the user to write a custom formula or accept the limitations of dropdown lists, the tool should understand the intent: "I need to collect either a number that counts something, or a clear signal that the data doesn't apply." That's a pattern, not a puzzle. And when the tool recognizes patterns, the user spends less time fighting the interface and more time getting the work done.
The practical takeaway is straightforward: the problem isn't the user's logic or their willingness to learn a new trick. It's that the tool hasn't evolved to meet a common, human need. If you find yourself building a workaround for something as basic as "whole number or N/A," it's a sign that the spreadsheet you're using was designed for a world before AI. The solution isn't a better formula, it's a better starting point. Explore tools that let you describe what you need in plain terms, and let the logic follow.