Quote Originally Posted by topcat00 View Post
Step 1: Have a pre-order period (multiple days). Example: from date 5/14/2021 to 6/30/2021. Send emails to account holders before, mid-way and at end with the dates and times. God knows I am always getting store emails from you for things you are selling.

Step 2: Total the pre-orders. The technical term for this is "addition" (足し算). For example: 7 + 3 = 10 (七足す三は十です。)

Step 3: Use the number from step 2 to determine the number of units to make. Hey, you might make a few extra just in case!
You absolutely cannot do it this way. This is how kickstarters get delayed two years.

Supply chains are not infinitely scalable. There must be an upper limit. By the way, there's also a pandemic on, so supply chains are even less scalable than they were two years ago.