AKB_WHERE_USED_LIST is a function module in SAP repository served for finding where used list of a given object. I had employed it in a custom ABAP program which is reporting the given dictionary tables and the program libraries they are used in.
After our upgrade to ABAP 7.4 i have seen that AKB_WHERE_USED_LIST is not existing. Then i have found out that CRMOST_WHERE_USED_LIST has come with exactly the same functionality. Anyway in the comment section of CRMOST_WHERE_USED_LIST, it is written that “this function is a copy of function AKB_WHER_USED_LIST with small enhancements”.