080128 : Option to append fields is turned on. Input table has many fields to append to the output feature class. Cannot append more than 1024 fields. Only first 1024 fields will be appended to output feature class
If "Append fields from Geography Boundary …" parameter is on and "Table Containing Matching Geography IDs" contains too many fields.
The Table Containing Matching Geography IDs cannot be more 1024 fields. Reduce this input table to less than 1024 fields and re-run the tool.