How to bypass code if criteria don't match?

Question

The code works when the criteria exists. I get an error when the criteria doesn't exist.

' Define constants.
Const srcName As String = "wfm_rawdata"
Const srcFirst As String = "D2" ' Location for Group
Const dstName As String = "bond_insurance"
Const dstFirst As String = "A2"  ' do not change the 'A' (entire row).


'This function will transfer rows from one worksheet to another worksheet
'  if the value = specified critiera
' Define workbook.
Dim wb As Workbook: Set wb = ActiveWorkbook ' Workbook containing this code.

' Define Source Range
Dim LastRow As Long
Dim srg As Range

' Define worksheet and column am working on and 
'  getting the range of last used cell using(LastRow)
With wb.Worksheets(srcName).Range(srcFirst)
    LastRow = .Offset(.Worksheet.Rows.Count - .Row).End(xlUp).Row
    Set srg = .Resize(LastRow - .Row + 1, 10)
End With
  
'Combine' critical cells into a range.
Dim brg As Range ' Built Range --> Range in the new sheet
Dim cel As Range ' Current Cell Range --> Range in the current sheet(rawdata)

'for every cell in group within wfm_rawdata sheet if the value = GO
For Each cel In srg.Cells
    If cel.Value = "BOND INSURANCE" Then
        ' If the range in the new sheet have nothing then
        '  add specific criteria from the group in wfm_rawdata
        If brg Is Nothing Then
            Set brg = cel
         ' if there is range in there combine the new and 
         '  old range together  using -> Union function
        Else
            Set brg = Union(brg, cel)
        End If
    End If
Next cel

Application.ScreenUpdating = False

' Copy and delete critical rows of Source Range.
With wb.Worksheets(dstName).Range(dstFirst)
    .Resize(.Worksheet.Rows.Count - .Row + 1, _
        .Worksheet.Columns.Count).clear
    Set brg = brg.EntireRow ' 'Convert' cells into rows.
    brg.Copy .Offset ' Copy. 'Offset' because range is in 'With'.
    brg.Delete ' Delete.
End With

How can I use a Boolean or other function to bypass the above code if the criteria doesn't exist?
For example if criteria "dog" exists then run the code and if it doesn't exist bypass the code.

I use this code to run three modules with code similar to the top code.

Sub master()
Call report1
Call report2
Call report3
End Sub

Answer 1

One you've assigned srg you can use Match() to check whether it contains any instances of the term you're interested in:

'...
'...
' Define worksheet and column am working on and getting the range of last used cell using(LastRow)
With wb.Worksheets(srcName).Range(srcFirst)
    LastRow = .Offset(.Worksheet.Rows.Count - .Row).End(xlUp).Row
    Set srg = .Resize(LastRow - .Row + 1, 10)
End With

'Exit if "BOND INSURANCE" is not found in `srg`
If IsError(Application.Match("BOND INSURANCE", srg, 0)) Then Exit Sub
'...
'...