I was using .NET for development an SAP application but recently, it always shows me the message below:
failed to call remote function module
I didn't change any setting or source code. But it still has the problem.
Anyone can tell me how to solve?
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Sandra Rossi
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Code Man
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Did you try to debug? What does code look like where the error occurs? [Stack Overflow is not a Mind Reader](http://meta.stackexchange.com/a/128551/143302). Please update your question and provide more details or it will likely get closed. – Filburt May 14 '12 at 11:22
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you should have a look at the stack trace, there is probably a more descriptive exception with an error message that points in the right direction. – Dirk Trilsbeek May 14 '12 at 11:50
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Ensure that the sap account used for this RFC is still active. – Alex May 15 '12 at 07:00
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Did you communicate the problem with the sap dev team? Make sure the function module is working correctly and it's remote call enabled. Is there a firewall between you .NET application and sap system? Make sure port 3301(I'm not sure about port number, please find it in sap jco document) is open on firewall.
Adam
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