ECC Contract not seen in SRM

Hi Gurus,

We are on SRM 7.0 ECC 6.0 EhP6, with classic scenario.

It is known that contracts existing in ECC can be used as source of supply in SRM (for classic scenario).

During a scenario test, I create a Material Group value contract in ECC (Item category "W", No Material - Only Material Group with description & Target value). This contract, however, in not visible in SRM as source of supply, when creating free text shopping cart for product category (no materials).

I need to be able to use ECC Item Category "W" contracts in SRM.

Again, if I create another ECC contract with same data, but this time I use Item Category as blank (Standard), I see the contract in SRM.

I do not know if this is standard. Am I missing something here ?

Many Thanks. Points assured if helpful.

PD.