Vendor field grayed out in MIGO while doing 201/261 K

Hi All,

When I try to isssue goods from consignment stock using movement tyep 201 K or 261 K in MIGO and try to post the document I get an error that Vendor number is not mentioned. But when I try to enter the vendor number in "Where" tab it is grayed out.

Can some tell me how to make it editable?

Regards,

V S