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Suppliers must provide with advanced estimates as to specific delivery dates and unit delivery volumes within the set delivery windows.

Delivery Windows:
The aim is to reduce delivery windows to improve new season performance and allow for an increase of in-season repeat ordering to drive greater sales volumes out of best selling lines.

Sicuramente ha a che fare con i tempi di consegna della merce, ma non capisco la differenza che il testo fa tra "delivery window" e delivery slot. Vedi esempio sotto:


A delivery slot can be reserved by email, phone or fax. Contact details for the DC are provided at the start of this section.

XXXXX will normally provide every supplier with a delivery slot no later than the second working day following the request.