Warehouse number XXXX not assigned to a supply chain unit Message no. /SAPAPO/MAT299

Warehouse number XXXX not assigned to a supply chain unit

Message no. /SAPAPO/MAT299

Dear all

When i am trying to do a /n/scwm/mat1 in the SCM box i get the above error please let me know what needs to be done

Thanks in advance

Regards

ananth