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Jul 03, 2014 at 05:28 AM

Error Netweaver Gateway RFC call ended with "Communication Failure" exception, the types match, but not the length


Hi Team,

It`s vert complecated issue.

i run http://<IP ADDRESS>:<PORT>/sap/opu/odata/sap/ZHR_VF_RCV_SRV/PurchaseOrders('4500000215')/PurchaseOrderItems

Error List

1) RFC call ended with "Communication Failure" exception (Call of the function Z_GET_PO_ITEMS failed; a field should be assigned to the parameter PO_ITEMS - the types match, but not the length).

2) <code>/IWBEP/CX_SD_GEN_DPC_TECH</code>

when i run web service then getting above error message. i did not usderstand whats a problem because ERROR LOG also not working.

if i run below URL from browser getting below error message

http://<IP ADDRESS>:<PORT>/sap/opu/odata/sap/ZHR_VF_RCV_SRV/PurchaseOrderItems('4500000215')?$format=xml

<error xmlns="">

<script id="tinyhippos-injected"/>


<message xml:lang="en">Invalid key predicate</message>

<innererror xmlns="">





Run transaction /IWFND/ERROR_LOG on SAP NW Gateway hub system and search for entries with the timestamp above for more details



See SAP Note 1797736 for error analysis (





guys please guide me. its very high priority.


Pankaj Kamble