Could SSA field be restrict by more than one SSA field?

Hi,

I have a requirement where one SSA field is restrict by another 2 SSA field.

In my case a field "sample ssa field" should be restrict by "itemgroup ssa" field and "ACCPACItem ssa field" .

The standard function of SSA field only allow it to be restrict by one SSA field.

Does any one has solution to this.

Thanks in Advance.

Natha