Getting Datahub composition error

[former_member562109]

Please fine the error log below in compositionHandler.

2018-07-05 22:53:40,782 [DEBUG] [c.h.d.c.i.CompositionChainRunnerStrategy] One of the composition handlers has CanonicalItem{id='null', integrationKey='null', status=ERROR, dataPool='DataHubPoolEntity{id=0, name=GLOBAL}', fields='{productID=CRMANDPR001A03, brandID=BRANDS, brandValue= CAR}'} failed.

Could you please suggest what is the cause for this error.

[rahulverma94]

Please inspect the values passed in the primary keys of the Canonical attributes of the Canonical Item Type.