Dear Michael
When you sell items in QIP, it updates the ICSBATCH in Comma Separated Values (Delimited) format. This file will continue to be appended until it is imported into IC and purged.
You must use the Import Shipments option in IC to update IC with quantities of items sold through QIP.
The QIP Manual Appendix H gives information on using QIP with Inventory Control.
Your IC manual will give information on how to import shipments.
Regards,
Softrak Support