Validate line breaks - Ideas - Salesforce Trailblazer Community
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It would be really helpful to have the ability to write a validation rule that allows for the evaluation of line breaks. For example in a text area field writing a validation rule that prevents a user from printing more than a  certain number of characters on a line but still allowing for multiple lines with that character max. It would be great to have a seperate function or operator that would allow for this, or the ability to use the \n operator in the regex function.

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