With only eight positions available in the Location field, you are limited on how you can define warehouse location addresses. For example, many warehouses define locations by:

However, in a selective rack space, there is enough room for two pallets in a typical bay. In this situation, the preference would be to add a fourth data element representing the bay position, 1 or 2. With only eight character positions, you are not able to add more characters to the XX-YY-ZZ format. You need to be creative when defining detailed locations.