Why am I getting the error "Already updated by sync user. Synchronization is not required" when I try to synchronize an entity?

Problem

I have updated the address to 1545 Orchard Villas Ave Ste207 and synced from Salesforce to Reltio with the following API

POST: {SFDCConnectorUrl}/synchronization/{tenant}/{profile}/byUris

When I used API to sync I got the below error:

[    {        "reltioType": "configuration/entityTypes/HCO",

        "errors": [],

        "entities/mnQVRAU": {

            "state": "failed",

            "reason": "Already updated by sync user. Synchronization is not required"

        }

    }

]

Solution

Add the parameter of ignoreSyncUserUpdate=true to the API in the header.

POST: {SFDCConnectorUrl}/synchronization/{tenant}/{profile}/byUris&ignoreSyncUserUpdate=true

This parameter will ignore the condition if Reltio Object already has the last update by SFDC Connector service user and force synchronization.