C2MS12 — Need Review/Documented Explanation of NUM-OF-PROD-SUBTYPE-SUBCATEGORIES

The purpose NUM-OF-PROD-SUBTYPE-SUBCATEGORIES in several messages is not clear and needs to be reviewed and either removed or expanded upon. Note that this is called NUM-OF-PRODUCT-SUBTYPES in C2MS 1.0, but the explanations are simply preserved from 1.0 into 1.1 where the field was renamed, so this issue persists.

One interesting aspect of this is that these subtype subcategories are represented in the subject of the Product Message ME5 and ME6, and all other messages that have it refer to this Subject construct. This is described in the table and notes for the table for (C2MS 1.1) "Table 8-163. Properties of the Miscellaneous Elements for the Product Message"

add additional explainer and short example to tables where field is defined

the fields basically make a hierarchical name, albeit in a clunky and confusing manner. the fields are intended to be used in conjunction with the table in A2 as well.

To address this issue in 1.2, we'll add brief explainer under each table the field is used.

For he future we need a new issue for hierarchical naming.