Invalid Namespace Error When Submitted ACA Files to the IRS Using the AIR UI

Question

I’m trying to upload a manifest and form files using the ACA transmission file upload UI but keep getting this message:

[TPE1101] Our system detected invalid or outdated XML namespaces in the Manifest file. Please review the XML standards outlined in Section 3 of Publication 5258, AIR Submission Composition and Reference Guide, located here, correct any issues on the Manifest file, and try again

The files I’m uploading are attached and are based on the sample files in publication 5258. Can you tell me what I’m doing wrong?

Here's the manifest file:

<?xml version="1.0" encoding="UTF-8"?>
<p:ACAUIBusinessHeader xsi:schemaLocation="urn:us:gov:treasury:irs:msg:acauibusinessheader IRS-ACAUserInterfaceHeaderMessage.xsd " xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p2="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:irs="urn:us:gov:treasury:irs:common" xmlns="urn:us:gov:treasury:irs:ext:aca:air:tyYY1" xmlns:p1="urn:us:gov:treasury:irs:msg:acabusinessheader" xmlns:p="urn:us:gov:treasury:irs:msg:acauibusinessheader">
<p1:ACABusinessHeader p2:Id="idvalue0">
    <UniqueTransmissionId>00000000-0000-0000-0000-000000000000:SYS12:BB000::T</UniqueTransmissionId>
    <irs:Timestamp>2001-12-31T12:00:00Z</irs:Timestamp>
</p1:ACABusinessHeader>
<ACATransmitterManifestReqDtl p2:Id="idvalue1">
<PaymentYr>2020</PaymentYr>
        <PriorYearDataInd>0</PriorYearDataInd>
        <irs:EIN>123456789</irs:EIN>
        <TransmissionTypeCd>O</TransmissionTypeCd>
        <TestFileCd>P</TestFileCd>
        <OriginalReceiptId>OriginalReceiptId</OriginalReceiptId>
        <TransmitterForeignEntityInd>0</TransmitterForeignEntityInd>
        <TransmitterNameGrp>
            <BusinessNameLine1Txt>BusinessNameLine1Txt</BusinessNameLine1Txt>
            <BusinessNameLine2Txt>BusinessNameLine2Txt</BusinessNameLine2Txt>
        </TransmitterNameGrp>
        <CompanyInformationGrp>
            <CompanyNm>CompanyNm</CompanyNm>
            <MailingAddressGrp>
                <USAddressGrp>
                    <AddressLine1Txt>AddressLine1Txt</AddressLine1Txt>
                    <AddressLine2Txt>AddressLine2Txt</AddressLine2Txt>
                    <irs:CityNm>CityNm</irs:CityNm>
                    <USStateCd>AL</USStateCd>
                    <irs:USZIPCd>12345</irs:USZIPCd>
                    <irs:USZIPExtensionCd>1234</irs:USZIPExtensionCd>
                </USAddressGrp>
            </MailingAddressGrp>
            <ContactNameGrp>
                <PersonFirstNm>PersonFirstNm</PersonFirstNm>
                <PersonMiddleNm>PersonMiddleNm</PersonMiddleNm>
                <PersonLastNm>PersonLastNm</PersonLastNm>
                <SuffixNm>SuffixNm</SuffixNm>
            </ContactNameGrp>
            <ContactPhoneNum>1234567890</ContactPhoneNum>
        </CompanyInformationGrp>
        <VendorInformationGrp>
            <VendorCd>V</VendorCd>
            <ContactNameGrp>
                <PersonFirstNm>PersonFirstNm</PersonFirstNm>
                <PersonMiddleNm>PersonMiddleNm</PersonMiddleNm>
                <PersonLastNm>PersonLastNm</PersonLastNm>
                <SuffixNm>SuffixNm</SuffixNm>
            </ContactNameGrp>
            <ContactPhoneNum>1234567890</ContactPhoneNum>
        </VendorInformationGrp>
        <TotalPayeeRecordCnt>1</TotalPayeeRecordCnt>
        <TotalPayerRecordCnt>1</TotalPayerRecordCnt>
        <SoftwareId>SoftwareId</SoftwareId>
        <FormTypeCd>1094/1095B</FormTypeCd>
        <irs:BinaryFormatCd>application/xml</irs:BinaryFormatCd>
        <irs:ChecksumAugmentationNum>0000000000000000000000000000000000000000000000000000000000000000</irs:ChecksumAugmentationNum>
        <AttachmentByteSizeNum>1592</AttachmentByteSizeNum>
        <DocumentSystemFileNm>1094B_Request_BB000_10000101T000000000Z.xml</DocumentSystemFileNm>
    </ACATransmitterManifestReqDtl>
</p:ACAUIBusinessHeader>

Here's the form data file:

<?xml version="1.0" encoding="utf-8" ?>
<p:Form109495BTransmittalUpstream xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="urn:us:gov:treasury:irs:msg:form1094-1095Btransmitterupstreammessage" xmlns:p1="urn:us:gov:treasury:irs:ext:aca:air:tyYY" xmlns:p2="urn:us:gov:treasury:irs:common" xsi:schemaLocation="urn:us:gov:treasury:irs:msg:form1094-1095Btransmitterupstreammessage IRS-Form1094-1095BTransmitterUpstreamMessage.xsd">
    <p1:Form1094BUpstreamDetail lineNum="0" recordType="">
        <p1:SubmissionId>1</p1:SubmissionId>
        <p1:TaxYr>2020</p1:TaxYr>
        <p1:BusinessName>
            <p1:BusinessNameLine1Txt>Information Systems</p1:BusinessNameLine1Txt>
            <p1:BusinessNameLine2Txt>Limited</p1:BusinessNameLine2Txt>
        </p1:BusinessName>
        <p1:BusinessNameControlTxt>WORK</p1:BusinessNameControlTxt>
        <p2:TINRequestTypeCd>BUSINESS_TIN</p2:TINRequestTypeCd>
        <p2:EmployerEIN>000001966</p2:EmployerEIN>
        <p1:ContactNameGrp>
            <p1:PersonFirstNm>Margaret</p1:PersonFirstNm>
            <p1:PersonMiddleNm>P</p1:PersonMiddleNm>
            <p1:PersonLastNm>Carter</p1:PersonLastNm>
            <p1:SuffixNm>Ms</p1:SuffixNm>
        </p1:ContactNameGrp>
        <p1:ContactPhoneNum>3012223333</p1:ContactPhoneNum>
        <p1:MailingAddressGrp>
            <p1:USAddressGrp>
                <p1:AddressLine1Txt>5000 Ellin Rd</p1:AddressLine1Txt>
                        <p2:CityNm>Lanham</p2:CityNm>
                        <p1:USStateCd>MD</p1:USStateCd>
                        <p2:USZIPCd>20706</p2:USZIPCd>
                        <p2:USZIPExtensionCd>12345</p2:USZIPExtensionCd>
                    </p1:USAddressGrp>
        </p1:MailingAddressGrp>
    </p1:Form1094BUpstreamDetail>
</p:Form109495BTransmittalUpstream>