Hi Bob,

Worksheet change code on A1 is what I was hoping for!

Data Validation for A1 is a list from source: =$K$7:$K$17

The list is:
bespoke
pattern 1
pattern 2
pattern 3
pattern 4
pattern 5
pattern 6
pattern 7
pattern 8
pattern 9
pattern 10

When any of the patterns are selected the below formulas gather the
required information. When bespoke is selected cells B1 & C1 show input
data. As discussed when I then input data I lose the formulas. Ideally
I would like some worksheet change code to reinstate the formulas if
another option is selected in Cell A1.

Formula for B1 is: =IF($B$7="<Input Data","<Input
Data",IF($B$7="bespoke","<User
Input",(VLOOKUP($B$7,$K$7:$M$17,2,FALSE))))

Formula for C1 is: =IF($B$7="<Input Data","<Input
Data",IF($B$7="bespoke","<User
Input",(VLOOKUP($B$7,$K$7:$M$17,3,FALSE))))

Many Thanks,

Ant