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        <link:definition>0603 - Disclosure - Line of Credit (Details)</link:definition>
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        <link:definition>0207 - Disclosure - Net Income (Loss) per Share</link:definition>
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        <link:definition>0507 - Disclosure - Net Income (Loss) per Share (Tables)</link:definition>
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        <link:definition>06071 - Disclosure - Net Income (Loss) per Share (Details Textual)</link:definition>
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        <link:definition>06021 - Disclosure - Financial Statement Components (Details Textual)</link:definition>
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        <link:definition>0607 - Disclosure - Net Income (Loss) per Share (Details)</link:definition>
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        <link:definition>0606 - Disclosure - Income Taxes (Details)</link:definition>
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        <link:definition>06053 - Disclosure - Stock-Based Compensation (Details Textual)</link:definition>
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        <link:definition>06052 - Disclosure - Stock-Based Compensation (Details 2)</link:definition>
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        <link:definition>06051 - Disclosure - Stock-Based Compensation (Details 1)</link:definition>
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        <link:definition>0605 - Disclosure - Stock-Based Compensation (Details)</link:definition>
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        <link:definition>0505 - Disclosure - Stock-Based Compensation (Tables)</link:definition>
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        <link:definition>06041 - Disclosure - Commitments and Contingencies (Details Textual)</link:definition>
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        <link:definition>0604 - Disclosure - Commitments and Contingencies (Details)</link:definition>
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        <link:definition>0504 - Disclosure - Commitments and Contingencies (Tables)</link:definition>
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        <link:definition>0602 - Disclosure - Financial Statement Components (Details)</link:definition>
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        <link:definition>0502 - Disclosure - Financial Statement Components (Tables)</link:definition>
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        <link:definition>0401 - Disclosure - General (Policies)</link:definition>
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        <link:definition>00 - Document - Document and Entity Information</link:definition>
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        <link:definition>0110 - Statement - Condensed Consolidated Balance Sheets (Unaudited)</link:definition>
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        <link:definition>0111 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)</link:definition>
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        <link:definition>0120 - Statement - Condensed Consolidated Statements of Operations (Unaudited)</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:definition>0130 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</link:definition>
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        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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        <link:definition>0201 - Disclosure - General</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType roleURI="http://spscommerce.com/role/FinancialStatementComponents" id="FinancialStatementComponents">
        <link:definition>0202 - Disclosure - Financial Statement Components</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType roleURI="http://spscommerce.com/role/LineOfCredit" id="LineOfCredit">
        <link:definition>0203 - Disclosure - Line of Credit</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType roleURI="http://spscommerce.com/role/CommitmentsAndContingencies" id="CommitmentsAndContingencies">
        <link:definition>0204 - Disclosure - Commitments and Contingencies</link:definition>
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        <link:definition>0205 - Disclosure - Stock-Based Compensation</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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      <link:roleType roleURI="http://spscommerce.com/role/IncomeTaxes" id="IncomeTaxes">
        <link:definition>0206 - Disclosure - Income Taxes</link:definition>
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        <link:usedOn>link:calculationLink</link:usedOn>
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