Getpivot data not referencing properly

[Fawn Lagimodiere]

I have a pivot table that I use getpivot data to get the results.

When I copy down formula referencing to the correct cell the data doesn't
read on some cells.

eg

Column A Column B Colmun C
E12546 Dec 100
E14556 Dec 500
E56894 Dec 50

my get pivot will reference Column A

E12546 will not read with the getpivot formula but E14556 and E56894 will
produce the results.

Not sure if there is a formatting issue with the raw data.

Any help is appreciated.

Thanks