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NW RFC SDK: RFC_INVALID_PARAMETER from RfcGetFunctionDesc

Posted on Dec 19, 2007 at 07:26 AM 32 Views

I'm trying to use function RfcGetFunctionDesc from NW RFC SDK for two custom, RFC-enabled functions in SAP. In one case it works all right. But when I try for the second one I get error 20 (RFC_INVALID_PARAMETER). The only thing I change in code is the function name.

What might be the reason why RfcGetFunctionDesc returns error 20 (RFC_INVALID_PARAMETER)? Are the limitations on types of export/import/table parameters or exceptions of function so that it could be inspected by RfcGetFunctionDesc

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  • author's profile photo Former Member
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    Posted on Jan 22, 2008 at 10:11 AM
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    Problem solved: some standard table data types appear as not Unicode compatible. They make RfcGetFunctionDesc to raise this error. Solution: use other types or create your own from scratch.

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