Code Fails Saving File

Hi

I am working with 2 files, A and B.

File A opens File B and then saves File B as file C.

Then Data gets pasted from File A to File C and then File C is saved as file C

My code works up to where I want to save file C as file C after pasting data from file A.

See my note within the code below CODE FAILS HERE

Thanks for any help on fixing this, Benjamin

Dim WkbFPMaster As Workbook
Dim WksFPMasterRDF As Worksheet
Dim WksFPMasterControl As Worksheet
Dim WkbRDF As Workbook
Dim WkbFPOFOpen As Workbook
Dim WkbFPOFSave As Workbook

Set WkbFPMaster = ActiveWorkbook
Set WksFPMasterRDF = WkbFPMaster.Sheets("RDF")
Set WksFPMasterControl = WkbFPMaster.Sheets("Control")

   
'LOOPING RECORD DATA FILES

    For M = 1 To Range("Max_RDF_Number")
    Range("Current_RDF_Number") = M
    Calculate
    If Range("RDF_Run_Option") = 1 Then
    
'OPEN FPOF MASTER AND SAVE AS FPOF OUTPUT FILE NAME
        
        Application.DisplayAlerts = False
        Set WbkFPOFOpen = Workbooks.Open(WksFPMasterControl.Range("FPOF_Root_Directory_Open").Value, UpdateLinks:=0)
        WbkFPOFOpen.SaveAs Filename:=(WksFPMasterControl.Range("FPOF_Root_Directory_Save").Value)
        Application.DisplayAlerts = True
    
 'MORE CODE IN HERE

       Application.DisplayAlerts = False
       WbkFPOFOpen.SaveAs Filename:=(WksFPMasterControl.Range("FPOF_Root_Directory_Save").Value) 'CODE FAILS HERE
       WbkFPOFOpen.Close (False)
       Application.DisplayAlerts = True
    
Next M

End Sub