vendor not able to see bid invitations created one day before

Hi friends,

We are workig with SRM5.0 SP08. I have observed that vendors are not able to see bid invitations processed one day before.

Could you pls suggest the probable reason, if anybody has come across similar problem? Bid invitation version is active and can be seen with purchasers login.

Your responses will be highly appreciated.

Regards,

Prashant