The valid date to receive JR west pass (first date of period)

Hello,

This is the first time I buy the JR west pass (Sanyo San-in Area Pass).

In JR west website,
https://www.westjr.co.jp/global/en/howto/train-reservation/receive/

There is a following information
- Deadline for receiving ticket: Valid until the day the valid period begins

If valid period of my JR west pass is from 1st Dec - 7th Dec.
does it mean that I can get the JR west pass at first day 1st Dec?

Since I would get the JR west pass at Kansai airport when I reach Japan, and use the JR west pass to reserve Haruka ticket,
I need to get the JR west pass (real ticket) at first day of JR west pass period.

Thanks for advise in advance