Hello,
BAdI SMOD_APOCF001 use the method EXIT_/SAPAPO/SAPLCIF_LOC_001.
This BAdI enables you to edit location master data that was transferred via Core Interface (CIF) from SAP ERP when it enters SAP SCM before further processing takes place. See the SAP note: 458914
Please debug the CIF get in touch with your technical person.
Best Regards,
R.Brahmankar