Partner's address was changed manually - SPL Screening Error

Hi Guys

A quick one.

While transferring documents from feeder system to GTS, the document is being transferred correctly, but when the SPL screening is taking place we get the below problems

SPL screening for partner 512720, partner role BA

Partner's address was changed manually

Partner's address has been identified as an entry in a boycott list

SPL screening for partner 512720, partner role LF

So baiscally even though the Partner is not present in the Blacklist because of the message of being changed manually, it triggers them into a Blacklist.

Any idea why this is happening, and what we can do to resolve this?

Thanks

Carl