Issue: Lead Sync is failing or some field sync is failing form SF to LS.
Root Cause: Mapping any look-up type fields in mapping section.
In Salesforce, Look-up type field is basically a dependent field.
As we don't support mapping look up type fields for contact mapping, it conflicts with existing settings and hamper lead sync when it is mapped.
This customer called Intellicus mapped it from their Salesforce backend and lead sync did not happen.
Please educate customers not to map look up type field in SF integration
Workaround method is to use custom fields instead of look-up type field.