If you use Serialized Inventory and Lot Tracking, you use the Mask Structures screen in the I/C Setup folder to define formats, or mask structures, for your serial numbers and lot numbers.
A mask structure can include:
- Up to five alphanumeric segments
- One segment that increments automatically, and it must be a numeric segment
- A prefix
- A total of 40 characters, including all segments, separators, and prefixes
Note: Plan your mask structures carefully before setting them up. Mask structures cannot be changed for an item after you have already started assigning numbers to it. Also, you cannot edit or delete a mask structure if any serial numbers or lot numbers have been assigned to inventory units using that mask structure.