Oracle.DataAccess.Client.OracleException: ORA-00904: "XXXXX": invalid identifier

This error is usually caused by having a field name entered in Sync & Save that does not match a field in Oracle. Normally Oracle does not require field names to match case, but Sync & Save places quotes around field names in order to allow for field names that have spaces in them. This means that field names must match exactly, including case.  

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