QM-Setting at Plant level

Dear All,

I am facing problem in Plant Dependent QM Settings.

I have 5 plants. Now I have created one more plants (Say 'Y' Plant)  and done all configuration for MM, SD, etc.

Now while QM Configuration I am facing probelm.

In SPRO,

SPRO ---> Quality Management --->Maintain Settings at Plant level.

Here first I am copying "X" palnt to Plant 'Y'.

Now for Plant 'Y', there is Result Recording tab.

In this tab  there is a field of Plant.

Now here I have copied all detail from 'X' plant to 'Y' plant.

So in this tab I am changing Plant as 'Y'. but is is not allow to change .

System giving error message like ,

"Selected set code does not exist, or data entered is incomplete. Message No. QV121."

What shall I do for this problem. Pl help me.

Regards

Swati