Handle Duplicate values of the Target system in mappings using Sync Editor

I have a HR sync project which gets data in the below format from the target system:

OI(primary rule)         <=   Target(primary rule)

Person(UID)              <=    Person(UID)

Org(Ident_ORG)       <=     Person(CCC_PositionID)

The Target person table has  multiple user's with one CCC_PositionID and the same column is being used in the primary rule for fetching Org data

So while doing the sync I am getting these warning messages:

Warning The object matching rule (Org <-> CCC_PositionID) supplied the following 3 objects with the same key (PID71666666). These objects were ignored.
72b9e03e-09d7-4ccd-89ac-23fea4de34f9 (dbo.Person - Target system)
f6cde3f1-92d6-4ba6-a1f1-f3d2b3935f19 (dbo.Person - Target system)
PID71666666 (Org - One Identity Manager)

The ORG creation is getting delayed as it finds many user's with same POSITIONID and starts throwing warnings. Taking almost 12 hours to complete the sync.

Can anyone please suggest me what can be done to fix this issue ?