2753927 - Preload of PI IDoc_AAE Metadata times out

• You are working with Process Integration (PI) or Process Orchestration (PO) configuring an IDoc_AAE integration
• You are attempting to preload IDoc metadata from a backend R/3 system using the Idoc Metadata Monitor
• Smaller sized IDoc types can be preloaded/imported from the same backend system
• For large sized Idoc types e.g. DELVRY03, you get the error below: 
  500 Connection Timed Out
• When checking in the Log Viewer or defaultTrace file, you can see entries similar to: 
  

  ERROR connection to partner '<IP address>:<port>' broken
  Caused by: com.sap.conn.jco.JCoRuntimeException: (102) JCO_ERROR_COMMUNICATION: CPIC-CALL: CMRCV on convId: 1885432
  Caused by: com.sap.conn.idoc.IDocRuntimeException: Unable to get meta data for IDoc type DELVRY03: CPIC-CALL: CMRCV on convId: 18854326

  LOCATION CPIC (TCP/IP) on local host with Unicode
  ERROR connection to partner '<IP address>:<port>' broken

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• SAP enhancement package 1 for SAP NetWeaver 7.3
• SAP NetWeaver 7.4
• SAP NetWeaver 7.5

SAP NetWeaver 7.0 ; SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP NetWeaver Process Integration 7.1 ; SAP NetWeaver Process Integration, business-to-business add-on 1.0 ; SAP NetWeaver Process Integration, connectivity add-on 1.0 ; SAP NetWeaver Process Integration, secure connectivity add-on 1.0 ; SAP enhancement package 1 for SAP NetWeaver 7.0 ; SAP enhancement package 1 for SAP NetWeaver 7.3 ; SAP enhancement package 1 for SAP NetWeaver Process Integration 7.1 ; SAP enhancement package 2 for SAP NetWeaver 7.0 ; SAP enhancement package 3 for SAP NetWeaver 7.0

Process Integration 7.31, PI 7.31, Process Orchestration 7.4, PI 7.4, PO 7.4, Process Orchestration 7.5, PI 7.5, PO 7.5, XI, AEX, import, preload, metadata, hang, ECC, ERP, SRM , KBA , BC-XI-CON-IDO , Idoc Adapter J2EE , BC-NWA-XPI , Process Integration (PI) Monitoring , Problem