Maximum number of fields per table? 127

Maximum characters to name a field or table? 7500

(The interface is currently limited to MS Access limitations with regard to field (data) lengths, field name lengths, field name characters supported, etc. Note also that the 7500 length indicated by Alberto is not a per-field length, but the total name+data length across all fields CADWorx will support)

Maximum number of tables? OOTB plus 10 Custom