Restrict data input to dates with the following format: YYYY-MM

Dear Experts:

I would like to restrict user input in cells A2:A30 to dates with the following format YYYY-MM.

Furthermore only dates between 2010-01 and 2030-12 are allowed.
Help is much appreciated. Thank you very much in advance.

Regards ,Andreas
Andreas HermleTeam leaderAsked:
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Farzad AkbarnejadDeveloperCommented:
To define display format:

Right-click on the cell you want to restrict the format in
Choose "Format Cells"
In the "Numbers" tab (the one that it opens on), you will see a list of categories choose "Date"
On the right, you can choose different formats in which to have the date displayed
If you can't find a format that fits your need, choose "Custom" from the Categories list

Also you need to use Data Validation to force an input to a specific format.

    Excel 2007 (& likely 2010) - Data Tools group > Data Tab > Data Validation
    Excel 2003 and earlier - Data > Data Validation

Select Date and enter the restrictions and input/error messages (if any), users will then be guided to input in the correct format.


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Saqib Husain, SyedEngineerCommented:
Format the range with YYYY-MM
Apply data validation to the range with the Date option between the dates you specify
If (and only if) you want the numbers stored in that exact format for future reference and don’t really want them stored as a date, then you may need to build a huge table with all the options for the “dates”, and then through data validation restrict the input to the table you just built.  (Although I don’t know what the performance would be like though).
Andreas HermleTeam leaderAuthor Commented:
Dear all,

thank you very much for your great help. I really appreciate it. Regards, Andreas
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