contract no. is not populating in supplier's list.

Hi Gurus,

when ever I am trying to maintain the vendor;s list as a source of supply for shopping cart.

Even if the contract exsist in the backend system, for the vendor and material, it is not populating in the vendor's list.

It is showing error like contract does not exsist in backend system.

( we are using classic scenario) even for search result for parameter as Vendor it doesn't show any contract for that vendor.

what settings ( configuration ) can be missing?

plz advise

kind regards

NITIN