url
https://homologacao.nfe.fazenda.sp.gov.br/ws/cadconsultacadastro4.asmx
operation

consultaCadastro
action
"http://www.portalfiscal.inf.br/nfe/wsdl/CadConsultaCadastro4/consultaCadastro"
soapver
2
parameters
[0] => Content-Type: application/soap+xml;charset=utf-8;action="http://www.portalfiscal.inf.br/nfe/wsdl/CadConsultaCadastro4/consultaCadastro" 
[1] => Content-length: 626 

header
Content-Type: application/soap+xml;charset=utf-8;action="http://www.portalfiscal.inf.br/nfe/wsdl/CadConsultaCadastro4/consultaCadastro"
Content-length: 626
namespaces
[xmlns:xsi] => http://www.w3.org/2001/XMLSchema-instance 
[xmlns:xsd] => http://www.w3.org/2001/XMLSchema 
[xmlns:soap] => http://www.w3.org/2003/05/soap-envelope 

body
<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
  <soap:Header>
    <nfeCabecMsg xmlns="http://www.portalfiscal.inf.br/nfe/wsdl/CadConsultaCadastro4">
      <cUF>35</cUF>
      <versaoDados>2.00</versaoDados>
    </nfeCabecMsg>
  </soap:Header>
  <soap:Body>
    <nfeDadosMsg xmlns="http://www.portalfiscal.inf.br/nfe/wsdl/CadConsultaCadastro4">
      <ConsCad xmlns="http://www.portalfiscal.inf.br/nfe" versao="2.00">
        <infCons>
          <xServ>CONS-CAD</xServ>
          <UF>SP</UF>
          <CNPJ>12345678901234</CNPJ>
        </infCons>
      </ConsCad>
    </nfeDadosMsg>
  </soap:Body>
</soap:Envelope>