The following texts were partially or completely generated with the help of generative AI models.
When working with RAP and Fiori Elements, things are usually straightforward - but it can happen that the app stops working for no apparent reason and Fiori Elements displays an error message "Unsupported OData Version 4.01":
Why - and where does this come from? How can I switch from regular OData 4.0 to OData 4.01? Short answer: This cannot be controlled (directly) by the developer. This switch can happen when you use features or data elements that are not supported by OData 4.0, which triggers a version change by the system. On the other hand, OData 4.01 is not supported by Fiori Elements.
In this case, the error was caused by using a field of type Decfloat:
cast( '47.11' as abap.decfloat16 ) as value,
We simply switched to the old-fashioned data type Decimal:
cast( '47.11' as abap.dec( 4, 2 ) ) as value,
And now everything works perfectly again 😉 .
Have fun!
Sören Schlegel
