Error : No Vendor Specified while check or save PO

Hi,

Case1

We are getting the error message while check or save

PO, "no vendor Specified".

Case2

Refernce to SDN solution, Maintained text inplace of no vendor specified messgae no 00 and class 001, &1&2&3&4&5&6&7&8.

Now Iam getting the error message &1&2&3&4&5&6&7&8.in place of No Vendor specified.

Please let me know how to resolve this issue.

Thanks

Nagaraj K