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      <link:roleType roleURI="http://www.manh.com/20221231/taxonomy/role/Role_ScheduleSCHEDULEIIValuationAndQualifyingAccountsDetail" id="Role_ScheduleSCHEDULEIIValuationAndQualifyingAccountsDetail">
        <link:definition>100440 - Schedule - SCHEDULE II - Valuation and Qualifying Accounts (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element id="manh_LeaseAssetsAbstract" name="LeaseAssetsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_LeaseLiabilitiesAbstract" name="LeaseLiabilitiesAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_AccruedAndOtherLiabilitiesCurrent" name="AccruedAndOtherLiabilitiesCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="manh_AmortizationPeriod" name="AmortizationPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnitsPerShare" name="AmountOfDilutiveSecuritiesStockOptionsAndRestrictiveStockUnitsPerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilities" name="CashPaidForAmountsIncludedInMeasurementOfLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="manh_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedSalesTaxes" name="DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedSalesTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="manh_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsCapitalizedCosts" name="DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsCapitalizedCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="manh_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOperatingLeaseLiabilities" name="DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOperatingLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="manh_DeferredTaxLiabilitiesDeferredCommissions" name="DeferredTaxLiabilitiesDeferredCommissions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="manh_DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets" name="DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="manh_EffectiveIncomeTaxRateReconciliationExcessBenefitOfEquityCompensation" name="EffectiveIncomeTaxRateReconciliationExcessBenefitOfEquityCompensation" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncome" name="EffectiveIncomeTaxRateReconciliationGlobalIntangibleLowTaxedIncome" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_EffectiveIncomeTaxRateReconciliationNondeductibleExciseTaxOnStockRepurchases" name="EffectiveIncomeTaxRateReconciliationNondeductibleExciseTaxOnStockRepurchases" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_EffectiveIncomeTaxRateReconciliationStateTaxCreditsAdjustment" name="EffectiveIncomeTaxRateReconciliationStateTaxCreditsAdjustment" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_EmployeeCompensationLimit" name="EmployeeCompensationLimit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="manh_ExpectedPercentageOfRevenueRecognizedFromRemainingPerformanceObligationOverTwentyFourMonths" name="ExpectedPercentageOfRevenueRecognizedFromRemainingPerformanceObligationOverTwentyFourMonths" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_IncreaseDecreaseInAccountsPayableAndAccruedAndOtherLiabilities" name="IncreaseDecreaseInAccountsPayableAndAccruedAndOtherLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="manh_IncreaseDecreaseInEarningsPerShareDiluted" name="IncreaseDecreaseInEarningsPerShareDiluted" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_LeaseholdImprovementsReceivedFromLandlord" name="LeaseholdImprovementsReceivedFromLandlord" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="manh_MaximumShareLimitationForEachShareGranted" name="MaximumShareLimitationForEachShareGranted" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_NumberOfSingleCustomersAccountingForMoreThanTenPercentOfAccountsReceivable" name="NumberOfSingleCustomersAccountingForMoreThanTenPercentOfAccountsReceivable" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_NumberOfSingleCustomersAccountingForMoreThanTenPercentOfRevenue" name="NumberOfSingleCustomersAccountingForMoreThanTenPercentOfRevenue" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_OperatingExpensesExcludingDepreciationAndAmortization" name="OperatingExpensesExcludingDepreciationAndAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="manh_OptionToExtendLeaseTerm" name="OptionToExtendLeaseTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_PercentageOfPerformanceBasedVestingProvisions" name="PercentageOfPerformanceBasedVestingProvisions" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_PercentageOfRevenueAccountedForByTopFiveCustomers" name="PercentageOfRevenueAccountedForByTopFiveCustomers" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_PercentageOfServiceBasedVestingProvisions" name="PercentageOfServiceBasedVestingProvisions" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_RevenuesFromTransactionsWithOtherOperatingSegmentsOfEntity" name="RevenuesFromTransactionsWithOtherOperatingSegmentsOfEntity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="manh_ShortTermLease" name="ShortTermLease" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="manh_StockRepurchasedUnderPubliclyAnnouncedShareRepurchaseProgramDuringPeriodShares" name="StockRepurchasedUnderPubliclyAnnouncedShareRepurchaseProgramDuringPeriodShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_StockRepurchasedUnderPubliclyAnnouncedShareRepurchaseProgramDuringPeriodValue" name="StockRepurchasedUnderPubliclyAnnouncedShareRepurchaseProgramDuringPeriodValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="manh_TaxCreditCarryforwardExpirationYear" name="TaxCreditCarryforwardExpirationYear" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_AccountingStandardUpdateExtensibleList" name="AccountingStandardUpdateExtensibleList" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_IncomeTaxesLineItems" name="IncomeTaxesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_LeasesLineItems" name="LeasesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_OrganizationConsolidationAndSummaryOfSignificantAccountingPoliciesLineItems" name="OrganizationConsolidationAndSummaryOfSignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_StockholdersEquityNoteLineItems" name="StockholdersEquityNoteLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_AtlantaMember" name="AtlantaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_CapitalizedContractCostToPriorPeriodOneMember" name="CapitalizedContractCostToPriorPeriodOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_CloudSubscriptionsMaintenanceAndServicesMember" name="CloudSubscriptionsMaintenanceAndServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_CloudSubscriptionsMember" name="CloudSubscriptionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_HardwareMember" name="HardwareMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_MinimumAlternateTaxMember" name="MinimumAlternateTaxMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_NonEmployeeDirectorRestrictedEquityAwardsMember" name="NonEmployeeDirectorRestrictedEquityAwardsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_PrepaidExpensesMember" name="PrepaidExpensesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_RestrictedStockAndRestrictedStockUnitMember" name="RestrictedStockAndRestrictedStockUnitMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_SalesCommissionMember" name="SalesCommissionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_SpecialEconomicZoneActMember" name="SpecialEconomicZoneActMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_StockOptionsAndStockAppreciationRightsMember" name="StockOptionsAndStockAppreciationRightsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_StockOptionStockAppreciationRightRestrictedStockOrRestrictedStockUnitMember" name="StockOptionStockAppreciationRightRestrictedStockOrRestrictedStockUnitMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_TwoThousandTwentyPlanMember" name="TwoThousandTwentyPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_WarehouseManagementProductGroupMember" name="WarehouseManagementProductGroupMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_IncomeTaxesTable" name="IncomeTaxesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_LeasesTable" name="LeasesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_OrganizationConsolidationAndSummaryOfSignificantAccountingPoliciesTable" name="OrganizationConsolidationAndSummaryOfSignificantAccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_StockholdersEquityNoteTable" name="StockholdersEquityNoteTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="manh_PrinciplesOfConsolidationAndForeignCurrencyTranslationPolicyTextblock" name="PrinciplesOfConsolidationAndForeignCurrencyTranslationPolicyTextblock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_RepurchasedSharesPolicyTextBlock" name="RepurchasedSharesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_RisksAssociatedWithSingleBusinessLineTechnologicalAdvancesAndForeignOperationsPolicyTextBlock" name="RisksAssociatedWithSingleBusinessLineTechnologicalAdvancesAndForeignOperationsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_ScheduleOfLeasesAssetsAndLiabilitiesTableTextBlock" name="ScheduleOfLeasesAssetsAndLiabilitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="manh_ScheduleOfOtherInformationRelatedToLeasesTableTextBlock" name="ScheduleOfOtherInformationRelatedToLeasesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
</xsd:schema>
