Lookup Column Not Working

Lookup Column Not Working

Hello,

New to Zoho DB so please forgive me if this has been discussed before. I am trying Zoho DB out before I commit to using it and created to databases - vendors and vendor accounts - and am trying to get teh Vendor Name from Vendors database to be a lookup column in the Vendor Accounts database, but when I create the Vendor Name field in the Accounts database and tag it as a Lookup Column it works, but when attempting to enter data into Vendor Accounts there is no data in the Vendor Name drop down even though data exists in the Vendors database?

Thank you for any help...............