The RFC does not receive the values passed in when calling the function module.

[RobertoCoutinho]

Hello, how are you?

I have a requirement that consists of calling an RFC in the USER EXIT of MV45AFZZ, I am passing the values but in the RFC the parameters are empty.

These are the RFC settings.

What could be causing this problem?

[Sandra_Rossi]

As you know, there can't be a problem with ABAP, so double-check your custom code, triple-check, till you find it.

[Tomas_Buryanek · Accepted solution]

Hi, it looks like "typo mistake" - wrong parameter names when calling RFC module.

RFC module has parameters V_VBELN etc. but you call it as VBELN.

[abo · Accepted solution]

and being optional... it goes unnoticed at compile time

[RobertoCoutinho · Accepted solution]

Thank you very much, Thomas.

[RobertVit]

Hi,

the types are not the same (vbeln and uname are no strings).

[Andreas-145]

Thomas‘ answer is correct. 
the parameters are named „V_VBELN“, not ‚VBELN‘.

Is you are running ATC check, you will find errors like this easily.

regards

[Vikash_Ranjan]

Hi,

There is typo mistake. Use V_VBELN instead of VBELN and V_USNAM instead of USNAM while calling the RFC in your program.

Regards,

Vikash Ranjan

[Sandra_Rossi]

no need of repeating the same answer as other people 😉