Question Re: RAP OData v4 Web-API metadata nullable action paramet... in Technology Q&A

RAP OData v4 Web-API metadata nullable action parameter (abstract entity)

jrtr — Thu, 16 Jan 2025 15:14:23 GMT

Hi folks,

I already asked a general question about the nullable option here and found solutions for properties based on CDS entities and custom entities. Now I need a solution for the properties of action parameter structures defined as abstract entities. How can I make the nullable="false" disappear in this case?

We're on a S/4 HANA oP 2023 release.

Re: RAP OData v4 Web-API metadata nullable action paramet...

AbhishekSharma — Tue, 21 Jan 2025 20:37:21 GMT

Hi @jrtr I am not sure if I understood your question correctly. but if ask is to not pass Key field while calling Abstract entity you may use in Abstract entity Behavior Definition.

field (suppress) <Key_field>;

Refer below code

abstract; strict ( 2 ); with hierarchy; define behavior for ZAE_ABSTRACT alias Head { field (suppress) key_field; association _Item; } define behavior for ZAE_ABSTRACT_ITEM alias Item { field (suppress) key_field; association _Head; }

Hope this helps...

Thanks-

Re: RAP OData v4 Web-API metadata nullable action paramet...

jrtr — Thu, 23 Jan 2025 07:05:33 GMT

Hi @AbhishekSharma thanks for your answer. Sorry if I did not ask precisely. The nullable option I want to change is in the metadata document. I attached a screenshot of the part that I want to influence.

Re: RAP OData v4 Web-API metadata nullable action paramet...

jrtr — Mon, 28 Apr 2025 13:38:30 GMT

After a long journey with SAP support the simple answer is:

"unfortunately, as of now we do not support influencing the nullable attribute of elements in abstract entities."