Request:
POST https://quickbooks.api.intuit.com/v3/company/9130351035598606/payment?requestid=7379767e-3db9-40e4-79de-a9cd60a6d62b&minorversion=38 HTTP/1.1
Content-Type: application/xml
Authorization: Bearer eyJlbmMiOiJBMTI4Q0JDLUhTMjU2IiwiYWxnIjoiZGlyIn0..ZvVm1lZ1WOdyB1GAet-mWQ.VSPkBMG52Hq-AVD7kQlVmFbwrJp_-7Tda9LFxn_PJL4tc54AsvS4HJcY4KXmS0WnS2j2wV_io3w1o1VQO_wTen_sd5DbzLpWE64MMPXRmw5eWeKB5RGPCQlUnQC1YXEN3-yXnyLxuwW7965tKrqtTb2DTbhf-o4K4jVXUxQ-7MbFdsvjfU78quw7yCJnk9IlXkZMF_BKz4FQIlPQMSXeSMKuYHkD7hjDBvqxHrxPZcEqITPLhnqouT29sqG9QuE9pOkeSD7BcAmBrUWxzG1nbYEAIo8WGyTdOYvBOJFV8aZ1aF4a0I1V8f1LYj099rmQPE4GnOQJwB2QyP-QrJ4bOX2VpOGEvCGig0pVW5Ag_xRA3zMgjxs9m_pmcQj8zv8p6B5EUCzHqWZ7Aa_-5Omdpu34MfxfRJ4j5artfH7WVVgp-rO3dDPThf8RoH46H9ZCzUZ_KaejG4CDXIHZMsmRjtQIMVqbS5VhiyVPYEEt4VakMg4scS39U7r0SxyFTPSzAtoA7hjcx06R39MzmoIKyl3VnbJpyY4Rj78ZuBdhimp_3H91J1TnPEZfI0rFPupxrsstKJE2gFpOVox5yxmxic7e6FKrBxqSJ62jf_VEOtdHdV7U0HYwMMeQkcSPgS5Ct7ecqtqGrvm4JfVXyNEOZVFKXTeUPrS0axl_yOM38eKNrHTFLfWx9IWzhrc1wMaeTC9L11_lmfuKE5RByINMkqskVrEewi2rmoK5QlRBN64._G4itXdr6ITg9P9K9s6ovg
Content-Length: 584

<Payment xmlns="http://schema.intuit.com/finance/v3">
	<Line xmlns="http://schema.intuit.com/finance/v3">
		<Amount>50.27</Amount>
		<LinkedTxn xmlns="http://schema.intuit.com/finance/v3">
			<TxnId>11</TxnId>
			<TxnType>Invoice</TxnType>
		</LinkedTxn>
	</Line>
	<PaymentRefNum>CC6501</PaymentRefNum>
	<TxnDate>2021-07-28</TxnDate>
	<PrivateNote>Order#: CC6501
Transaction ID: 98624236814806022</PrivateNote>
	<PaymentMethodRef>5</PaymentMethodRef>
	<TotalAmt>50.27</TotalAmt>
	<CustomerRef>12</CustomerRef>
	<DepositToAccountRef>65</DepositToAccountRef>
</Payment>

Response:
HTTP/2 400
date: Wed, 28 Jul 2021 21:42:44 GMT
content-type: application/xml
content-length: 534
server: nginx
intuit_tid: 1-6101cf54-3f31c32462455f3378d6abf0
x-spanid: 9d1a9e69-b498-4213-9874-e1a6faa072fd
x-amzn-trace-id: Root=1-6101cf54-3f31c32462455f3378d6abf0
strict-transport-security: max-age=31536000

<?xml version="1.0" encoding="UTF-8" standalone="yes"?><IntuitResponse xmlns="http://schema.intuit.com/finance/v3" time="2021-07-28T14:42:44.559-07:00"><Fault type="ValidationFault"><Error code="6000" element=""><Message>Une erreur de validation de l'entreprise s'est produite lors du traitement de votre demande.</Message><Detail>Erreur de validation d'entreprise : Le numéro que vous tentez d'utiliser a déjà été employé pour une autre opération. Veuillez indiquer un autre numéro.</Detail></Error></Fault></IntuitResponse>