Creation of supply chain unit

hi all,

i am doing the configuration part of integration of sap erp with sap ewm.in this while maintaining the supply chain unit in transaction/scmb/scumain. i am unable to create the supply chain unit ,the system is showing invalid transfer parameters.what is the reason for this where i have to maintain the settings for the creation of supply chain unit.

The error message is

Invalid transfer parameter(s)

Message no. /SCMB/SCU007

kindly guide me

Regards,

Velu