Issue while connecting with SAP BAPI/RFC from Azure Logic App

Question

Hi,

I am using logic app to call RFC function in SAP. But the RFC function contains slash(/) in the name as shown in the image below. In the input request parameters body, when I pass the RFC name with slash, it's not accepting and throwing 400 bad request. It is converting all the slashes into an Unicode value 'x002F' like below.

Error Message: 'Element 'x002F*_x002F_BAPI_***_*****' with namespace name '' was not found. Line 1, position 2.'. Ensure that your message xml validates against the operation schema."

Please let me know how I can make this work.

Thanks,
Jeevi

Answer 1

The forward-slash character / is reserved in XML for element names. As it is used in SAP for namespace prefixes, it needs to be escaped when used as element name. Your test payload is not a valid XML element name at the moment as it is not escaped.

Here is a dummy XML payload example for RFC named /BDL/ACTIVATE_SDCCN. The root local node name becomes _x002F_BDL_x002F_ACTIVATE_SDCCN. (This example uses explicit ns2 but you can just define the default namespace for root as well and not deal with the namespace prefix).

<?xml version="1.0" encoding="UTF-8"?>  
<ns2:_x002F_BDL_x002F_ACTIVATE_SDCCN xmlns:ns2="http://Microsoft.LobServices.Sap/2007/03/Rfc/" xmlns:ns3="http://Microsoft.LobServices.Sap/2007/03/Types/Rfc/" >  
  <ns2:IF_SOLMAN>X</ns2:IF_SOLMAN>  
  <ns2:IS_MASTER_RFC>  
    <ns3:DESTINATION>ns3:DESTINATION</ns3:DESTINATION>  
    <ns3:INSTALL_NO>00000001</ns3:INSTALL_NO>  
    <ns3:SID>ns3:SID</ns3:SID>  
    <ns3:DESCR>ns3:DESCR</ns3:DESCR>  
    <ns3:MASTER>X</ns3:MASTER>  
    <ns3:TO_SAP>X</ns3:TO_SAP>  
    <ns3:USERNAME>ns3:USERNAME</ns3:USERNAME>  
    <ns3:ACTIVE>X</ns3:ACTIVE>  
    <ns3:TIMESTAMP>ns3:TIMESTAMP</ns3:TIMESTAMP>  
  </ns2:IS_MASTER_RFC>  
  <ns2:ET_MSG>  
    <ns3:BAPIRET2>  
      <ns3:TYPE>S</ns3:TYPE>  
      <ns3:ID>ns3:ID</ns3:ID>  
      <ns3:NUMBER>000</ns3:NUMBER>  
      <ns3:MESSAGE>ns3:MESSAGE</ns3:MESSAGE>  
      <ns3:LOG_NO>ns3:LOG_NO</ns3:LOG_NO>  
      <ns3:LOG_MSG_NO>000001</ns3:LOG_MSG_NO>  
      <ns3:MESSAGE_V1>ns3:MESSAGE_V1</ns3:MESSAGE_V1>  
      <ns3:MESSAGE_V2>ns3:MESSAGE_V2</ns3:MESSAGE_V2>  
      <ns3:MESSAGE_V3>ns3:MESSAGE_V3</ns3:MESSAGE_V3>  
      <ns3:MESSAGE_V4>ns3:MESSAGE_V4</ns3:MESSAGE_V4>  
      <ns3:PARAMETER>ns3:PARAMETER</ns3:PARAMETER>  
      <ns3:ROW>0</ns3:ROW>  
      <ns3:FIELD>ns3:FIELD</ns3:FIELD>  
      <ns3:SYSTEM>ns3:SYSTEM</ns3:SYSTEM>  
    </ns3:BAPIRET2>  
  </ns2:ET_MSG>  
</ns2:_x002F_BDL_x002F_ACTIVATE_SDCCN>