SAP IS-Retail / Consignment indicator K not found in MB51

Dear all,

1. For consignment articles, consignment stock indicator K not showing in article movement  data where T Code MB51.
2. Stock over (T Code: MMBE):when stock in Zero  [OR] Negative stock Consignment storage location not updated for GOODS RECEIPT OR GOODS ISSUE, instead of that stock updated in  unrestricted storage location, which should not happened.
3. Movement type is 251.
4. This is happened with site particular sites(Plants)

Regards