Fix Hubspot-Salesforce Cardinality Errors -- 2

Fix HubSpot‑Salesforce Cardinality Errors -- 2
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I’m looking for a specialist who can identify and correct the cardinality errors now blocking data synchronization between HubSpot and Salesforce. Salesforce will remain the single source of truth, so every fix must respect its object architecture and business rules.
Responsibilities
Audit the current sync configuration, pinpointing the one‑to‑many or many‑to‑one mismatches that are throwing errors.
Adjust field mappings or create intermediary objects where required so records flow cleanly in both directions without duplication.
Test each change in a sandbox, document results, then promote the proven solution into production with minimal downtime.
Produce a concise handover guide that shows the final mapping, explains any custom workflow touch‑points, an...