2267261 - No IDoc found in input, neither iDocList nor the IDoc tables message in SAP Business Connector 4.8

• The SAP Business Connector 4.8 service /invoke/pub.sap.transport.ALE/InboundProcess access from an external system fails with this exception:
  
  <sapbc48>/server/logs/error.log:
  com.wm.app.b2b.server.ServiceException: No IDoc found in input, neither iDocList nor the IDoc tables
  at com.wm.pkg.sap.idoc.Transformer.transformPipelineToIDoc(Transformer.java:135)
  at pub.sap.transport.ALE.InboundProcess(ALE.java:87)
  
  
• With increased logging the POST method shows the Content-Type of the POST method:
  POST /invoke/pub.sap.transport.ALE/InboundProcess
  <-- TE: deflate,gzip;q=0.3
  <-- Connection: TE, close
  <-- Authorization: Basic 12345678
  <-- Host: <sapbc48 host>:5555
  <-- User-Agent: libwww-perl/5.813
  <-- Content-Length: 6431
  <-- Content-Type: application/x-www-form-urlencoded
  --> HTTP/1.0 403 Service Error
  --> Set-Cookie: ssnid=<cookie>; path=/; HttpOnly
  --> Content-Type: text/html; charset=utf-8
  --> Connection: Close
  --> Content-Length: 15332
  No IDoc found in input, neither iDocList nor the IDoc tables

SAP Business Connector 4.8

SAP Business Connector 4.8, IDoc, IDocList, pub.sap.transport.ALE, InboundProcess, ServiceException , KBA , BC-MID-BUS , Business Connector , How To