topic Re: Error while calling RFC when using BSP Web Interface in Application Development and Automation Discussions

Error while calling RFC when using BSP Web Interface

Former Member — Thu, 05 Jul 2007 09:06:57 GMT

Hi,

we have a problem with the Authorization when we use an Web Interface for BSP. We have assigned all roles to the user which were mentioned in the SAP standard documentation:

R_AREA

R_METHOD

R_PACKAGE

R_PARAM

R_PLEVEL

R_PM_NAME

R_PROFILE

R_STS_PT

R_STS_SUP

R_WEBITF

S_RS_ADMWB

S_RS_AUTH

S_RS_COMP

S_RS_COMP1

S_RS_DAS

S_RS_ICUBE

but we still get the error message: "Error while calling RFC".

When using a user with SAP_ALL, it works.

What can we do?

Thx for your time.

Joerg

Re: Error while calling RFC when using BSP Web Interface

Former Member — Thu, 05 Jul 2007 09:18:02 GMT

sounds like it could be missing auth object S_RFC.

Add the object with full auths and stick a trace on the user (ST01) to ID exactly what functions are required & amend the role to suit.

Re: Error while calling RFC when using BSP Web Interface

dhorions — Thu, 05 Jul 2007 09:46:02 GMT

That is correct, on the target system you need s_rfc with in

RFC_TYPE = 'FUGR'

RFC_NAME the name of the function group

ACTVT = '16'

for each function group you want to be able to execute remotely.

Re: Error while calling RFC when using BSP Web Interface

Former Member — Thu, 05 Jul 2007 10:51:29 GMT

No, thats in.

S:A:RFC

Activity All activities

Name of RFC to be protected *

Type of RFC object to be prote All values

Re: Error while calling RFC when using BSP Web Interface

Former Member — Thu, 05 Jul 2007 10:57:48 GMT

ok, next idea then. Have you tried switching on a trace for the user when you have assigned SAP_ALL?

Re: Error while calling RFC when using BSP Web Interface

Wolfgang_Janzen — Thu, 05 Jul 2007 10:58:15 GMT

Actually that's surprising - because BSP (Business Server Pages) and RFC (Remote Function Call) are not related; they use totally different transport protocols (http vs. RFC). Even if an BSP application is calling a function module remotely (acting as RFC client) no authorizations for S_RFC are required - in the calling system (but in the called system, i.e. the RFC server).

Since assigning SAP_ALL seems to "cure" the problem, it seems to be an authorization issue, indeed. In that case it makes sense to use the authorization trace (ST01 - notice: that's specific to one single ABAP application server; you might have to activate the trace on multiple instances) to find out which authorizations are checked / demanded.

Re: Error while calling RFC when using BSP Web Interface

Former Member — Thu, 05 Jul 2007 12:26:21 GMT

Reason was the Autorization Object S_RS_ICUBE, there you need the InfoCube Subobject DEFINITION. Otherwise you get that error...

Thank for your Help