Can I calculate a combined product field for "packages"?
Combined product field
Follow these steps to calculate an additional field per order that has a certain value if the order contains a certain products:
Add a custom column.
Set the Export Mode to "Compress" (you only want one line per order, but you need the order details compressed in this one line).
In the Columns tab you need to choose the order line detail that identifies the combined product - like the SKU.
Then you need to add a mapping - like this one:
