Line 15 causes causes the variable orderNumber to be a string (text):
let orderNumber = `${Number(lastItemInCollection._ID) + 1}`
Should be:
let orderNumber = Number(lastItemInCollection._ID) + 1
Still looking…
Line 15 causes causes the variable orderNumber to be a string (text):
let orderNumber = `${Number(lastItemInCollection._ID) + 1}`
Should be:
let orderNumber = Number(lastItemInCollection._ID) + 1
Still looking…