SMQ2 error - you can only wok in Client 910

Dear All,

We have EWM System in our Landscape.

It has two client 900 for SCM and 910 for APO.

When our functional consultants moving material from ECC 100 to EWM 900 .

In SMQ2 it is showing error - you can only work in client 910.

Can any one guide me, Thanks.

Best Regards,
Srini