Work Order - Backflush Question

SOLVED

In Work Orders, is it normal when 

Issue Method = Backflush
Auto-Material = Yes

To get the following message when issuing a completion transaction:



I understand the message, but we don't get this every time.   I presume there is a step I am missing, or simply, even when Backflush and Auto Material is set, you still need to manually distribute?

Thanks

Sage 100c Advanced 2018  v6.00.10.0