<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM KANA
COMMUNICATIONS, INC. 10K AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>

                                                  
<PERIOD-TYPE>                                 YEAR                    YEAR
<FISCAL-YEAR-END>                          DEC-31-1999             DEC-31-1998
<PERIOD-START>                             JAN-01-1999             JAN-01-1998
<PERIOD-END>                               DEC-31-1999             DEC-01-1998
<CASH>                                          18,695                  13,875
<SECURITIES>                                    36,167                     160
<RECEIVABLES>                                    5,021                     957
<ALLOWANCES>                                       366                     110
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                                61,553                  15,032
<PP&E>                                           8,360                   1,493
<DEPRECIATION>                                   1,531                     328
<TOTAL-ASSETS>                                  70,229                  16,876
<CURRENT-LIABILITIES>                           21,317                   3,199
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                      13
<COMMON>                                            61                      19
<OTHER-SE>                                      48,500                  12,951
<TOTAL-LIABILITY-AND-EQUITY>                    70,229                  16,876
<SALES>                                         10,536                   2,014
<TOTAL-REVENUES>                                14,064                   2,347
<CGS>                                              271                      54
<TOTAL-COSTS>                                   14,455                 125,182
<OTHER-EXPENSES>                                 2,163                      97
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                               2,079                      88
<INCOME-PRETAX>                                      0                       0
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                                  0                       0
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                  (118,743)                (12,601)
<EPS-BASIC>                                      (4.61)                  (2.01)
<EPS-DILUTED>                                    (4.61)                  (2.01)