What is a batch number, manufacturer number or item number?

Batch nummer 

The batch number is noted on the product label of the wallpaper roll.

Manufacturer number

The manufacturer number is the number assigned to the product by the manufacturer.
You will find the number in the left-hand text block on the product page. However, this will only appear once you have selected a variant.

Item number

The item number is the number assigned by MEINEWAND to each product listed in the shop. You will find this number on the product page directly after the product name. 
As soon as you select a variant, this number is also directly assigned to a product.