Exhibit 31.2

CERTIFICATION

I, Kevin J.
Yeaman, certify that:

|1. |  | I
have reviewed this quarterly report on Form 10-Q of E.piphany, Inc.;
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|2. |  | Based
on my knowledge, this report does not contain any untrue statement of a material fact or
omit to state a material fact necessary to make  the statements made, in light of the
circumstances under which such statements were made, not misleading with respect to the
period covered by  this report;
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|3. |  | Based
on my knowledge, the financial statements, and other financial information included in
this report, fairly present in all material  respects the financial condition, results of
operations and cash flows of the registrant as of, and for, the periods presented in this
report;
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|4. |  | The
registrant's other certifying officer and I are responsible for establishing and
maintaining disclosure controls and procedures (as defined  in Exchange Act Rules
13a-15(e) and 15d-15(e)) for the registrant and have:
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| | (a)
Designed such disclosure controls and procedures, or caused such disclosure controls and
procedures to be designed under our  supervision, to ensure that material information
relating to the registrant, including its consolidated subsidiaries, is made known to us
by others within those entities, particularly during the period in which this report is
being prepared;
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| | (b)
Evaluated the effectiveness of the registrant's disclosure controls and procedures and
presented in this report our conclusions about  the effectiveness of the disclosure
controls and procedures, as of the end of the period covered by this report based on such
evaluation;  and
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| | (c)
Disclosed in this report any change in the registrant's internal control over financial
reporting that occurred during the  registrant's most recent fiscal quarter (the
registrant's fourth fiscal quarter in the case of an annual report) that has materially
affected, or is reasonably likely to materially affect, the registrant's internal control
over financial reporting; and
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|5. |  | The
registrant's other certifying officer and I have disclosed, based on our most recent
evaluation of internal control over financial  reporting, to the registrant's auditors
and the audit committee of the registrant's board of directors (or persons performing the
equivalent  functions):
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| | (a)
All significant deficiencies and material weaknesses in the design or operation of
internal control over financial reporting which  are reasonably likely to adversely
affect the registrant's ability to record, process, summarize and report financial
information; and
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| | (b)
Any fraud, whether or not material, that involves management or other employees who have
a significant role in the registrant's  internal control over financial reporting.
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Date:  November 8, 2004

| |  |  | /s/ Kevin J. Yeaman                    |  | 
| |  |  | -------------------------------------- |  | 
| |  |  | Kevin J. YeamanChief Financial Officer |  |