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So I have two completely different solutions, I'll call them solutionA.wsp and solutionB.wsp and they are being deployed to the same site

Both of them contain a site column definition for a column named "WorkOrder"

Here's the definition found in solutionA.wsp

      <Field Type="Text" DisplayName="Work Order" Description="Order Number" Required="FALSE" EnforceUniqueValues="FALSE" Indexed="FALSE" Decimals="0" Group="Custom Group A" ID="{BBBD31AD-8D18-4BD3-AFCD-5F6249328B2F}" StaticName="WorkOrder" Name="WorkOrder" Overwrite="TRUE" xmlns="http://schemas.microsoft.com/sharepoint/" />

and here's the column, as I defined it in solutionB.wsp:

      <Field Type="Text" DisplayName="Work Order" Description="Order Number" Required="FALSE" EnforceUniqueValues="FALSE" Indexed="FALSE" Decimals="0" Group="Custom Group B" ID="{AABD31AD-8D18-4BD3-AFCD-5F6249328B2c}" StaticName="WorkOrder" Name="WorkOrder" Overwrite="TRUE" xmlns="http://schemas.microsoft.com/sharepoint/" />

On a clean development SharePoint site instance, I've successfully deployed both .wsp files, but, I can only activate the features of one or the other, but not both.

I thought the difference in GUID's between the two columns was enough to prevent this error from occuring. Thoughts?

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1 Answer

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The StaticName and Name also have to be unique between the columns.

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I was just figuring this out as I browsed my site structure via SharePoint Manager. I had taken for granted that the duplicate field names I saw listed in it's treeview were coming from the Name field, when in fact, it was merely the DisplayName that was duplicated. Thanks! – bkwdesign Jun 26 '12 at 18:29
Yes. The display names can be same but the internal names have to be unique for each column. – Vardhaman Deshpande Jun 26 '12 at 18:30

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