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Hi, I want a cell to generate an error based upon a validation list. HOWEVER, I want this to happen when the cell entry DOES NOT occur in the list. How do I do that ? Thanks.
Hi, I want a cell to generate an error based upon a validation list. HOWEVER, I want this to happen when the cell entry DOES NOT occur in the list. How do I do that ? Thanks.
Last edited by AliGW; 12-29-2017 at 08:20 AM. Reason: Title updated to properly reflect requirements and to avoid confusion.
What do you mean?
That is the point of validation: If cell value does not occur in the list then error is showed.
Welcome to the forum!
That is the way it works: set up a list with 'yes' and 'no' as the options, then try typing 'maybe' into the cell - you get an error message.
Ali
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welcome to the forum. inside the Data Validation window via DATA tab -> Data Validation, there is a Error Alert tab. click on that and you can customise the Title and the message. i have done some screenshots for you inside the file
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Hi,
I wish to use the validation option in a specific way : I want excell to stop when the cell entry DOES match with the validation list.
To make it more tangible : the cell should contain a calendar date in a file, used to request for a day off. If the date in this cell is part of a list with bank holidays, the error code should stop and warn.
(as if I would make a list with all calender days, except the bank holidays...)
Last edited by jokkebal; 12-29-2017 at 08:13 AM.
There may be other ways to achieve this: have a look at the NETWORKDAYS function.
Hi Ali, thanks for that tip. Didn't know it and may be useful... however not in my case. I want to make the file "stupid-proof" by preventing people to choose a specific date when asking a day off. This specific date being a bank holiday, which is "off anyway.
data validation, custom
Formula =iserror(match(cell to be validated,range of bank holidays,0))
eg =iserror(match(a1,a2:a11,0))
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