Please see steps below for selecting report to print.
In Business Central, go to the Insight Works Report Selection page.
Change the Usage to “Item Label”.
For the Report ID, enter “23044511”.
For the Printer Type, choose “Label Printer”.
From the Warehouse Insight home screen on your handheld, open the Item Inquiry application.
Scan an item. If you do not have a barcode you can manually select the item with a double-tap on the item or by tapping the item and selecting Menu > Choose—or, if your handheld has a physical keyboard—tapping the item and pressing Enter.
Select Menu > Print.
The item label will print to the label printer specified on the WMS Express Device Configuration page in Business Central.
I am having this same issue. Upon clicking print the printer prints the document for the receipt but does not print labels for the pallets. On the answer above the Report ID 23044511 is not available on WMS Express so that doesn’t help either.