topic Re: parameter_conversion_error during RFC in Application Development and Automation Discussions

parameter_conversion_error during RFC

Former Member — Wed, 26 Jun 2013 06:47:48 GMT

Hello Experts,

I get a 'PARAMETER_CONVERSION_ERROR' dump with the following short text 'An error occurred during the receipt/conversion of a complex parameter'. The dump file is also attached.

The called function module has no 'tables' parameters. Also the associated 'exporting' parameter is of type string.

The OSS note 414429 has already been referred to. I DO NOT get the 'CALL_FUNCTION_SEND_ERROR' dump and there is no mismatch of the

parameters or types used.

Somewhere in the attached dump file, you will notice that there are some corrupted entries like '䄀###䄀###䄀.....'.

(The managed ERP system is based in Asia, making me wonder if this is a Unicode related issue..but again, im not ure about this)

Any suggestions what the issue could be here? Could this be the RFC middleware engine that converts data from ABAP<-> XML causing this problem or could it be a ABAP language(kernel)issue?

Thanks in advance.

Best,

Dev

Re: parameter_conversion_error during RFC

venkateswaran_k — Wed, 26 Jun 2013 06:49:44 GMT

Can you please tell me what are your /import and export paramters and their type?

Regards,

Venkat

Re: parameter_conversion_error during RFC

former_member196490 — Wed, 26 Jun 2013 07:25:49 GMT

Check the below link if it helps

http://www.saptechies.com/abap-runtime-error-parameterconversionerror/

Re: parameter_conversion_error during RFC

RaymondGiuseppi — Wed, 26 Jun 2013 07:31:39 GMT

If one system is Unicode and not the other then conversion will occur (check tab "MDMP and Unicode" in RFC definition) > First check definition of RFC destination related to Unicode and Conversion.

Parameter type character will be converted in the RFC call, but not deep/complex ones, so that can be the cause of the problem ?

Some references : Code Pages (help.sap.com) , Note 1790232 - FAQ: Unicode - Technical FAQs (question 25), Note 991572 - Code page settings for external RFC programs and Note 547444 - RFC Enhancement for Unicode ./. non-Unicode Connections.

Regards,

Raymond

Re: parameter_conversion_error during RFC

Former Member — Wed, 26 Jun 2013 07:43:14 GMT

HI Mahadevan,

It looks like an unicode conversion issue. If that is it, then you need to convert the attached value by using the below class method.

TRY.

CALL METHOD cl_abap_conv_in_ce=>create

EXPORTING

encoding = '1100'

input = ls_xstring

RECEIVING

conv = l_convin.

CALL METHOD l_convin->read

IMPORTING

data = p_string.

CATCH cx_root.

EXIT.

ENDTRY.

Put it in a loop if more than one record and then append into one more table.

Hope that helps.

Regards,

Adithi

Re: parameter_conversion_error during RFC

Former Member — Wed, 26 Jun 2013 07:54:16 GMT

Hi Venkat,

Thanks.

Please find attached the parameters that are being used in the function.

Best,

Dev

Re: parameter_conversion_error during RFC

former_member215981 — Wed, 26 Jun 2013 07:56:10 GMT

Hello,

please check RFC destination SM_OBICLNT132_READ, under Unicode tab, ensure target is maintained

correctly. you can use unicode test to know what the target sytem is.

Best Regars,

Yong Luo

Re: parameter_conversion_error during RFC

Former Member — Wed, 26 Jun 2013 08:08:27 GMT

Thanks Yong,

RFC destination SM_OBICLNT132_READ in SM59 has the following status.

The client system itself has Unicode status = 'YES' under system->status.

So if this is the issue, should not the ABAP system/RFC engine take care of such conversion issues?

Cheers

Dev

Re: parameter_conversion_error during RFC

former_member215981 — Wed, 26 Jun 2013 08:14:08 GMT

Hello Dev

please click "Unicoe test" button on the menu. if it is non-unicode, please go to Logon& Security to check

what language is maintained here, you need to specify correct one.

if the target is unicode then you need to change to unicoe under this tab.

after this, to see this help or not.

Best Regards,

Yong Luo

Re: parameter_conversion_error during RFC

Former Member — Wed, 26 Jun 2013 08:21:41 GMT

Hi,

could you set communication type to unicode and try again? Or copy the RFC destination to a unicode connection? If yes, what's the result then?

Regards,

Klaus

Re: parameter_conversion_error during RFC

Former Member — Wed, 26 Jun 2013 08:34:23 GMT

Hi Yong,

Unicode test results

Screenshot below doesn't say much

'please go to Logon& Security to check what language is maintained here'

No language is maintained here. I don't think I can change this as this is automatically generated from SolMan

if the target is Unicode

No, target system is not Unicode. Source system is.

Best,

Dev