Save As File Name With A Cell Value As The Folder

i currently have a macro on my sheet which when the file opens will chaneg a cell value by +1 and save the new worksheet as that value.

What i would like is for the new worksheet to automatically save in a new folder relevant to another cell value. So i can save the sheets in job no order.

Can't seem to get it to work....

Here is a copy of my macro so far:

Sub SequentialNumber()
Const InitialValue = 1
Const increment = 1
Const prefix = ""
Const suffix = ""

Dim existSN As Boolean
Dim existMF As Boolean
Dim master As Boolean
Dim cdp As DocumentProperty
Dim SeqNumber As Long
Dim FSName As Variant

existSN = False
existMF = False
master = False.........