UI PATH BAPI activity issue

[sri_kudaravalli]

Hi, I am trying to load data to SAP using SAP Invoke BAPI Activity, BAPI using is BAPI_ACC_DOCUMENT_POST. I am getting below error on the activity.
BAPI_ACC_DOCUMENT_POST: Object reference not set to an instance of an object.

Attached is the xaml and input file. Please let me know if anyone has solution for this. Thanks in advance.

[StefanSchnell]

@sri_kudaravalli

Hello Sri,
welcome in the UiPath Forum.

Sorry, but I can’t find an attachment.

Is it possible for you to open the Invoke SAP BAPI activity and to see the parameters of the BAPI function module?

Best regards
Stefan

[sri_kudaravalli]

Hi Stefan, Thanks for your response. i might have missed to attach the xaml files, sorry about that. please refer to attached files and to your question, yes i can see the screen.

BAPI.zip (160.2 KB)

[StefanSchnell]

@sri_kudaravalli

Hello Sri,
that’s great that you see the screen, so you are connected to the SAP successfully.
As far as I can say looks your workflow very good.
The error “Object reference not set to an instance of an object” occurs also if a data type or the content of an input variable is wrong, e.g. the string OBJ_KEY with length 20 is greater as 20 characters. I assume this is the error in your case.
To analyze the details I propose that you build an easy test workflow, only with SAP Application Scope and Invoke SAP BAPI activity with the UiPath.SAP.BAPI.Activities 2.1.0. I hope this version gives you better hints to find the reason. You can find a detailed explanation here.
Let us know your results.
Thanks and best regards
Stefan

[sri_kudaravalli]

Thank you Stephan for your suggestions. the issue is resolved after fixing datatype discrepancies.