Hi,
I have data validation setup on cells in a column, the data validation is 'List' and the source is currently;
....and this works fine.
I am trying to add a new condition in so the code will then be (addition is in red);
....but this keeps coming back with the error "The list source must be a delimited list, or a reference to single row or column".
The different drop down lists that the formula is calling are all in the same column on a Validation sheet within the same workbook.
I have 3 or 4 different workbooks with similar 'List Source' and I do quite a bit of editing on it, occasionally I do get this error but it's a case of one moment I get the error, I try again and it works so I don't actually know how it resolved itself.
Can someone give me a hint please.?
Thank you.
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