The Carabao Cup Round One draw will be completed on Thursday, June 22 – the same day as Albion find out their 2023/24 Sky Bet Championship fixtures.
It will take place at 2:30pm and be shown live by Sky Sports.
A total of 36 matches will be drawn for the first stage of the competition, with all 72 EFL clubs, including newly-promoted Notts County and Wrexham, in the hat.
The 12 Premier League sides not competing in Europe will join in Round Two, with the other eight top-flight sides starting in Round Three.
Round One will see teams drawn in Northern and Southern sections, with games scheduled to take place the week commencing Monday, August 7.
The Baggies are set to find out their Championship schedule earlier that day (Thursday, June 22) when the fixtures are released at 9am.