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Excel VBA Msg Box when cell meets criteria

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Hello,

Hi this will probably be very simple for someome however I am having a nightmare day, all I want is a vba formual which will bring up a message box when a cell is showing a specific criteria.

Can anyone help?

Cheers

Ian
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2 replies

Answer 1 / 2

This code assumes that what you are looking for is in column A.

Private Sub Find_Criteria()

Dim i
Dim r
r = Range("A65536").End(xlUp).Row
i = 1


For I = I To r

If Range("A" & i) = "criteria" Then

MsgBox "Found" & " " & Range("A" & i).Address

End If

Next i

End Sub

If you are looking for certain criteria in a range of cells, then try something like this.

Private Sub Find_Criteria()

Dim I As Variant
Dim FindRange As Range
Set FindRange = Range("A1:K50")

For Each I In FindRange

If I = "criteria" Then

MsgBox "Found" & " " & i.Address

End If

Next i

End Sub
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Answer 2 / 2

I can not get this code to work, I am getting an ambiguos error I do need all 3 message boxes to come up at the same time if the < value is met. Thanks any help is appreciated

Private Sub Worksheet_Calculate()
If Range("F10").Value < 5300 Then
MsgBox "Initial Load Must be at least 5,300Kgs"

End If
End Sub

Private Sub Worksheet_Calculate()
If Range("G10").Value < 4300 Then
MsgBox "Initial Load Must be at least 4,300Kgs"

End If
End Sub

Private Sub Worksheet_Calculate()
If Range("H10").Value < 1300 Then
MsgBox "Initial Load Must be at least 1,300Kgs"

End If
End Sub
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 768 > cx72go
Not know exactly why message boxes are needed. But in case you can live with one message box that have all possible errors, you can try this 

Private Sub Worksheet_Calculate()
Dim myMessage As String

    myMessage = ""
    
    If Range("F10").Value < 5300 Then
        If (myMessage <> "") Then myMessage = myMessage & vbCrLf
        myMessage = myMessage & "Initial Load Must be at least 5,300Kgs"

    End If

    If Range("G10").Value < 4300 Then
        If (myMessage <> "") Then myMessage = myMessage & vbCrLf
        myMessage = myMessage & "Initial Load Must be at least 4,300Kgs"

    End If

    If Range("H10").Value < 1300 Then
        If (myMessage <> "") Then myMessage = myMessage & vbCrLf
        myMessage = myMessage & "Initial Load Must be at least 1,300Kgs"

    End If
    
    If (myMessage <> "") Then MsgBox (myMessage)

End Sub
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I am trying to tell a lab person when there is not enough product in a vessel to hit the agitator blades at the same time I am trying to remind him how much he does need. I first tried to make an adjacent cell highlight and appear with the correct value using conditional formatting but I was unable to get that to work so I tried vba.

Thanks jerry
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 768 > cx72go
Jerry I meant there are three messages. So potentially three time ok needs to be clicked. There can also be one message with all the warnings listed. Thats what I tried to show in the macro in message #5. I thought it may be of interest to you. Of course there might be cases, where every warning needs to come up one by one and this might be one of those case.
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i dd like the one message box better I wish I had your talent at this stuff, I have two sections that need these reminder messages on the same page, is there a way to kkeep them seperate? this is what I have now:

Private Sub Worksheet_Calculate()
Dim myMessage As String

myMessage = ""

If Range("F10").Value < 5300 Then
If (myMessage <> "") Then myMessage = myMessage & vbCrLf
myMessage = myMessage & "Initial Load Must be at least 5,300Kgs for R-5"

End If

If Range("G10").Value < 4300 Then
If (myMessage <> "") Then myMessage = myMessage & vbCrLf
myMessage = myMessage & "Initial Load Must be at least 4,300Kgs for R-4"

End If

If Range("H10").Value < 1300 Then
If (myMessage <> "") Then myMessage = myMessage & vbCrLf
myMessage = myMessage & "Initial Load Must be at least 1,300Kgs for R-3 "

End If

If Range("H10").Value < 3000 Then
If (myMessage <> "") Then myMessage = myMessage & vbCrLf
myMessage = myMessage & "Initial Load Must be at least 3,000Kgs for R-2 "


End If

If Range("F22,G22").Value < 1450 Then
If (myMessage <> "") Then myMessage = myMessage & vbCrLf
myMessage = myMessage & "Initial Load Must be at least 1,450Kgs for #4 & 5 Premix"


End If

If Range("H22").Value < 1675 Then
If (myMessage <> "") Then myMessage = myMessage & vbCrLf
myMessage = myMessage & "Initial Load Must be at least 1,675Kgs for #3 Premix"

End If

If Range("I22").Value < 905 Then
If (myMessage <> "") Then myMessage = myMessage & vbCrLf
myMessage = myMessage & "Initial Load Must be at least 905Kgs for #2 Premix"



End If


If (myMessage <> "") Then MsgBox (myMessage)

End Sub
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 768 > cx72go
First, I am not sure if this is correct

If Range("F22,G22").Value < 1450 Then

you can have it like this
If ( (Range("F22") < 1450) AND (Range("G22") < 1450) ) Then
or
If ( (Range("F22") < 1450) OR (Range("G22") < 1450) ) Then

depending what you want.


From what I understood, you want two set of possible warnings, with in this one routine. You can do that

so after first msgbox pops up ( If (myMessage <> "") Then MsgBox (myMessage) )

after that line

write
myMessage =""
This will reset the message to a blank string. And then you can again start adding the if statements as before and then finally again the code for msgbox to pop up, once done with "IFs"
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