AutoSort col when Cell value changes

[NateD1]

Hello All

In need of some help, i have a table which i would like it to auto sort if a cell value changes.

Header of table is Row: A12:Q12. within this table i would like to sort only header AL12.
cell A3 is the reference cell which will change. If Cell A3 changes value, AL12 to sort table col in Ascending order.
Thank

 

[NateD1]

Still can get it to work for some reason, below is an example screen shot of what my table looks like. B2 is the cell that will change to trigger the auto sort in Cell D8

 

[Fluff]

You originally stated that the header was in A12:Q12, but that image shows the headers starting in B7.
Where exactly is the data?