10/09/2026
September is when Q4 preparation moves from planning into ex*****on. Stock should be moving, carrier conversations should be done, and the operation should be getting ready to perform.
Here are four things worth checking right now:
1. Inbound processing speed.
Stock arriving into the warehouse needs to be receipted and available promptly. The sooner inbound goods are processed and on the shelf, the more value comes from the planning done over summer.
2. Carrier SLA confirmations.
Volume commitments, cut-off dates, and surcharge schedules for Q4 should be confirmed in writing this month. September gives you time to address any gaps before October arrives.
3. Promotional volume briefings.
Your 3PL needs your Q4 promotional calendar now, including expected volume uplifts by week, any new SKUs, and kitting or bundle requirements. The earlier that lands, the better positioned the operation is when volumes climb.
4.Inventory data accuracy.
Real-time stock visibility becomes more important as volumes grow. September is a good moment to check that SKU setup is accurate and your portal is giving you the information you need to manage through peak confidently.
September is the month when the groundwork laid over summer either holds or shows its gaps. The brands that move through Q4 with the least disruption tend to have those four conversations done before October arrives.