Hi Acrylon,

Once an item format is set (when the data is first created), you may not edit the format because that would cause integrity errors in the data. You would require a utility such as the Toolkit for Adagio to change the Item Format to something else - so that all historical transactions are also changed.

Adagio Inventory only allows a maximum of 16 characters in an item code (not counting the segment separators). If your items are 3 segments of 2-2-12, then you are already at the maximum and cannot increase the length of the last segment anyway.