&CAUSE&
You are processing an assessment contract. This contract mustrefer uniquely to a Condominium Owners Association contract (therental unit assigned to the assessment contract must belong to abusiness entity for which a Condominium Owner Associationmandate (COA contract) exists).
The assignment for the assessment contract in question is not unique.This means there could be several Condominium Owners Associationmandates within the object hierarchy. Consequently the system cannotdetermine uniquely to which COA mandate the current assessment contractbelongs.

Procedure
Check the hierarchy of Real Estate objects and the related contracts(COA contract, assessment contracts) and correct the object assignmentin the contracts as required.