How to identify Category Code in Item rule ?

Summary:

How to identify Category Code in Item rule ?

Content (please ensure you mask any confidential information):

Hi everyone,

As described in the summary, we need to identify the Category Code of an item within the syntax of an item rule.Specifically, we would like the generated item number to have the code of the associated category as a prefix, followed by a sequential number.Currently, we have only been able to achieve this by defining a secondary if for each existing category and specifying the category code in the return value.

For example: IF assignedToCatalog(Catalog[X].Category[AAA]) -> "AAA" + auto_sequence(....)