Consume OData 'MMIM_MULTIPLE_MATERIAL_SRV' in an external app

[HusseinAlbadran]

I need to use the same info in Fiori App 'Stock - Multiple Material' in an external non-SAP app, the OData service from the Fiori app reference library is 'MMIM_MULTIPLE_MATERIAL_SRV'.
Usually, I build a custom CDS view and then put it in a custom communication scenario, however for this app it's a bit difficult to build the custom CDS view.

Can anyone help on how can I use this OData service in a communication scenario, please?

SAP S/4HANA Cloud Public Edition SAP S/4HANA Cloud Public Edition Extensibility 

[Hongbo_Wang1]

Hi, You can not add SAP standard API into your custom communication scenario. BR, Hongbo

[jay_cheah]

@Hongbo_Wang1 - he did not say it was a custom communication scenario. Is there a way to activate the API that is used by a SAP Fiori app ? There is some documentation for this but it applies to S/4 on premise.