WBS element not copied into PO item from Asset

Hi all,

After upgrading to EHP7, we are issuing a problem.

When creating a PO with material group only, called AA for software components.

We have entered the Acc Assign Category "I" (Stat IO/ Asset) at item level, and entered an Asset at Accnt. Assgn tab, and here we were expecting that the WBS element assigned to the Asset is copied.

But this is not the case. The WBS element field at Accnt. Assgn tab still empty, where it was working fine before upgrade from EHP6 to EHP7.

Of course, already checked:

- Asset is OK

- WBS element is OK

Please, could you help me to find out why this behavior?

Thanks for your help.