Expression.Error: We cannot convert the value to type Text.

I did find what was throwing off the error.

The original source of the table was a folder with dozens of Excel files with multiples sheets within them. Combining these sheets with PQ into a single table,  I missed a step by removing Rows that are blank. When I explicitly defined the column to be Text, which both contains values that can are Text (H007074686, H007074680, H007074689) and Number (1043672) as well as the Blank rows, the step was throwing off an error on both the Blank and Number values. When I removed the Blank rows, Change Type now works and the Merge is no longer throwing off the error.

Perfect. But still no idea why the blank row would mess with the Change Type step. Hopefully someone can shed some light.

Cheers,

David