<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-07-29</periodOfReport>

    <issuer>
        <issuerCik>0001919369</issuerCik>
        <issuerName>VISTA CREDIT STRATEGIC LENDING CORP.</issuerName>
        <issuerTradingSymbol>[NONE]</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001747310</rptOwnerCik>
            <rptOwnerName>Riddick Stephen A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O VISTA CREDIT STRATEGIC LENDING</rptOwnerStreet1>
            <rptOwnerStreet2>CORP., 50 HUDSON YARDS, FLOOR 77</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10001</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-07-29</value>
                <footnoteId id="F1"/>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1628.282</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>19.13</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9568.372</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On July 3, 2024, the Reporting Person entered into a subscription agreement with the Issuer for an aggregate capital commitment of $250,000. On July 1, 2026, the Issuer issued to the Reporting Person a capital call drawdown notice for $31,150.11. On July 29, 2026, the Issuer communicated the number of shares of Common Stock acquired in respect of such subscription to the Reporting Person.</footnote>
        <footnote id="F2">Consists of shares held by R3 Holdings, LLC. Includes 798.283 shares received pursuant to the Issuer's distribution reinvestment plan by the Reporting Person subsequent to April 23, 2025, the date as of which the Reporting Person most recently reported his ownership of Issuer Common Stock on a Form 4 filed by the Reporting Person on June 24, 2025.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Marina Novello, attorney-in-fact</signatureName>
        <signatureDate>2026-07-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
