google-sheetsgoogle-sheets-formula
How can I prevent users from entering non-alphanumeric characters in a Google Sheet
I tried using the Data Validation on the column H by applying the custom formula: =REGEXMATCH(H1, "^[a-zA-Z0-9]+$"); but to no avail, Google Sheets tells me that this formula is invalid.
Back in 2020 it worked. Did Google change something?
Solution
From the screenshot it looks like the sheet locale uses semicolon ; convention instead of ,
go with =REGEXMATCH(A1; "^[a-zA-Z0-9]+$")
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