OData V2 Request fails and no error message is displayed

[uifivvy]

Hi experts,

one of our customers faces an issue with one OData request, but I can't figure out the cause, because no error message is displayed in the response, and there are no entries in the /IWFND/ERROR_LOG or ST22.

The request is a simple GET request of an EntitySet. It happens only once if the user opens the application the first time of the browser session. There are several requests before that error request which are all successful. After a page refresh the error no longer occurs. 

This is the response of the request:

This is the request 

The customer is using a S/4HANA system and it only occurs on the test system, not the productive system.

Do you have any idea what could be causing the problem or how I can find out the exact cause?

Thanks in advance

Julia

[junwu]

under network, what that preview tab says?

[uifivvy]

Just the message text you see in my first screenshot ("HTTP request failed"), so nothing helpful 😞

[junwu]

are you looking at the correct client when you check log? do you know how to debug your odata service?

[uifivvy]

Yes, the client 100 is correct. I know how to debug the OData service, but I assume since no error log is given that the request does not even get to the GetEntitySet method. But I will give it a try.

[junwu]

is your gw embedded or separated?

[uifivvy]

It's embedded

[uifivvy · Accepted solution]

I finally found the problem: the customer has set the Soft State to "Active" which is not supported by our OData service.

The Soft State can be set via transaction /IWFND/MAINT_SERVICE.

More information about Soft State:

https://help.sap.com/doc/saphelp_nw75/7.5.5/en-US/25/a27ab5fb614b538bc44228fcc9b027/content.htm?no_c...

[rkaouass]

Hi Julia,

can you change the settings in the manifest.json to set useBatch to false.

Set a trace in the transaction /n/IWFND/TRACES and show us the details.

[uifivvy]

Unfortunately this is not possible since this is only reproducible on our customers system.

[rkaouass]

Do you have access to /n/IWFND/GW_CLIENT to make some requests and test the requests?