Believe it or not, timing for the sending and receiving of the files between the stores can be kind of critical.

You need to make sure the remotes have sent their files, and HQ has received them, before HQ sends out to the remotes.

You can end up in a situation where the changes from the remotes ( sales) have not been received by HQ before it sends its files out.

This can mean HQ is sending out old quantities, and will not catch up until the following day, where it is already behind again.

This was the case with a client we had where the HQ was in California, but the remotes were in Texas. We had to set the transfer times to insure that the remote data was processed in to the HQ, Before the HQ sent out it's morning file.