Unable to activate Standard POS

Hi,

We have a new installation of SAP SCM 5.0 server for sandbox.

When trying to activate the standard POS (9ASNPBAS, 9ADPBAS, 9ASNPSA, 9ATPVSOB), it is giving me a message to save the planning object structure.

As this are standard POS, I am unable to save it and hence unable to activate.

Do send me if you have any documentation relating to this problem or if you have a solution for this.

Regards

Raghu Kishore.