Help sorting array of UDTs

I am trying to sort and array of UDTs using a sub but I get the follow error. Does anybody know what I am doing wrong?

"Only public user defined types defined in public object modules can be used as parameters or return types for public procedures of class modules or as fields of public user defined types"

Code:

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Type UserInformation
    UserID As String * 16
    UserName As String
    OSName As String
    OSDomain As String
    EmailAddress As String
End Type

Public Sub SortUserInfo(UserArray As Variant)
   
Dim i As Integer
Dim SortFlag As Boolean
Dim TempUserInfo As UserInformation
   
    SortFlag = False
    While SortFlag = False
        SortFlag = True
        For i = 0 To UBound(UserArray) - 1
            If LCase(UserArray(i).UserName) > LCase(UserArray(i + 1).UserName) Then
                TempUserInfo = UserArray(i)
                UserArray(i) = UserArray(i + 1)
                UserArray(i + 1) = TempUserInfo
                SortFlag = False
            End If
        Next i
    Wend

End Sub

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My main code is different module calling the SortUserInfo sub

Code:

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Dim UserInfo() As UserInformation

    SortUserInfo (UserInfo)

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The answer is a rather obvious one:

Quote:

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"Only public user defined types defined in public object modules can be used as parameters or return types for public procedures of class modules or as fields of public user defined types"

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Dim is more or less declaring the variable Private, so use the Public keyword and make sure your UDT is located in your module.

Your problem is with your variant type in the procedure. If you wish to pass a UDT byref in a procedure, you must declare the type itself:

Code:

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Public Sub SortUserInfo(UserArray As UserInformation)

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I may be mistaking when I say that you MUST declare the type itself, but I tested it on my computer and I got the same error as you did. When I changed the variable type declaration to UserInformation, I didn't get any error.

So, I hope that helps.