Grocery stores cannot send automated orders to warehouses. It is impossible to fix it in time I've been programming computers for about 30 years. I'm a good programmer. I meet my deadlines and my programs work. I say this because I work in an industry notorious for not meeting deadlines and for producing programs that don't work.
Computer programs consist of lines of instructions for the computer to follow.
Computer programmers write these lines of instructions. You can visualize a computer program as a recipe book having many dishes. Imagine that cookbook having no titles on the recipes, just ingredients and instructions. The ingredient names have been abbreviated and you don't always recognize the terms. Also, there is no index.