Data Validation in Excel 2007

Hi,

Is it possible to do a custom data validation if the values in the cells for that particular field alternate?

For example, my organization works with 3 different groups, so each group has its own acryonm, which I know will be consistent. For example, the groups are called KORD, CIDKP-C, and CIDKP-S. However, in the cells for this field, II also want to include the date of each transaction and keep track of each transaction with an ID number. So it will be CIDKP-C 2011-01, CIDKP-C 2011-02, etc... or KORD 2011-01, KORD 2011-02 etc..., or CIDKP-S 2011-01, CIDKP-S 2011-02, etc....

Is it possible to set a field for data validation with such criteria?

thanks,
carlynne
CarlynneAsked:
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zorvek (Kevin Jones)ConsultantCommented:
Assuming your group is in cell A1 then use this custom validation formula:

=LEFT(B1,LEN(A1))=A1

Kevin
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zorvek (Kevin Jones)ConsultantCommented:
Do you need assistance setting up the custom validation formula?

Kevin
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CarlynneAuthor Commented:
Hi Kevin,

Thanks very much for your quick response. II can find my way to setting up custom validation by selecting column > data> data validation. Then the data validation box opens, and I use the drop down menu to select custom. Correct?

I entered the code you provided, and then I tried to enter CIDKP-C 2011-01, but Excel says that the value I entered is not valid.

thanks,
carlynne
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zorvek (Kevin Jones)ConsultantCommented:
>Then the data validation box opens, and I use the drop down menu to select custom. Correct?

Correct.

When defining the custom validation formula, you have to select the cell for which the validation rule is intended and use that cell as the reference as well as the cell in the same row that contains the group code.

For example, if setting up the rule for cell B2 and the group code is in cell A2, select B2, open the validation dialog box, and use this formula:

=LEFT(B2,LEN(A2))=A2

Kevin
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zorvek (Kevin Jones)ConsultantCommented:
Also, ensure that the value enter in cell A2 is indeed that same text that prefixes the rest of the value being entered in cell B2.

Kevin
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CarlynneAuthor Commented:
thanks!
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