Does anyone know why "Customer Part Number" is displaying with too much spacing as shown in the screenshot? This is an ADV PDF.

Late reply to this, but it's due to the native justification built into the templates. Here is a post on how to fix it: https://blog.prolecto.com/2016/03/18/netsuite-advanced-pdf-templates-how-to-fix-table-cell-alignment-justification-anomaly/