Question Re: invalid or no mapping to system data types found. in Technology Q&A

invalid or no mapping to system data types found.

Former Member — Thu, 10 Apr 2014 07:27:35 GMT

Hello Netweaver gurus.

One of my client faces this issue. Has anybody come across similar error types ?

Regards,

Nitin Koushik

Re: invalid or no mapping to system data types found.

AshwinDutt — Thu, 10 Apr 2014 09:12:48 GMT

Hello Nitin,

In my opinion the error is because you would not be using an appropriate Entity to perform respective operation and can also be due to invalid mapping e.g. NUMC to Edm.Decimal

Lets say you have an Entity 'A' to Update a media content to BE. You can use the same Entity 'A' to Read the updated media content as well.

Leta say now you want to Read set of data from BE ( Not a Media content )

You cannot use the Entity 'A' to perform this. You need to have a different Entity which will get the info needed from BE.

Even if you forcefully try to map the response in code level, you will get the error ' Invalid or no mapping to system data types found '. This is because Entity 'A' would have got the special semantics to Read the media content not the set of data.

Kindly check this and also the Types , Type Lengths , No of Decimal Places etc...used in Model

Regards,

Ashwin

Re: invalid or no mapping to system data types found.

Former Member — Thu, 10 Apr 2014 13:39:17 GMT

Hello Ashwin,

I will check your suggestion and findings. since i would be on leave for 10 days or so, i may not able to check it immediately. But definitely check it and respond to your valuable suggestion.

Re: invalid or no mapping to system data types found.

Former Member — Mon, 26 May 2014 09:03:56 GMT

Hey Nitin,

Did you find a solution yet?

Kind regards,

Re: invalid or no mapping to system data types found.

Former Member — Mon, 26 May 2014 11:59:16 GMT

Hi Robbe,

if your problem is related to uploading file please check this

Regards,

Peter

Re: invalid or no mapping to system data types found.

Former Member — Mon, 26 May 2014 12:57:11 GMT

Thanks Peter! I forgot to redefine the "DEFINE" method.

Re: invalid or no mapping to system data types found.

AshwinDutt — Wed, 28 May 2014 05:03:24 GMT

Hello Nitin,

You get that error if you not passing back the response as well .

So kindly check that also.

Regards,

Ashwin

Re: invalid or no mapping to system data types found.

Former Member — Tue, 02 Feb 2016 06:43:07 GMT

Hi All,

I redefined the DEFINE method in ZCL_ZDSR_IMAGE_MPC_EXT as follows.

method DEFINE.

super->define( ).

Data: lo_entity TYPE REF TO /iwbep/if_mgw_odata_entity_typ,

lo_property TYPE REF TO /iwbep/if_mgw_odata_property.

lo_entity = model->get_entity_type( iv_entity_name = 'FILE' ).

IF lo_entity IS BOUND.

lo_property = lo_entity->get_property( iv_property_name = 'FileName').

lo_property->set_as_content_type( ).

ENDIF.

endmethod.

After that my problem has solved.

Thanks,

sivaraju

Re: invalid or no mapping to system data types found.

Former Member — Mon, 15 Feb 2016 21:37:16 GMT

Thanks Sivaraju. Your solution worked for me as well.

Re: invalid or no mapping to system data types found.

Ankit_Maskara — Mon, 23 May 2016 04:15:15 GMT

Helped me.

Thanks.

Re: invalid or no mapping to system data types found.

Steve-Kangethe — Mon, 29 Jun 2020 19:29:33 GMT

Thanks. This worked perfect! Just also worth to note that after this one needs to Load Metadata again for the service in order for the change to take effect after activating the redefined method.