What is the difference between extension include view and extension view in SAP S/4HANA

SAP S/4HANA what is the difference between extension include view and extension view, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain in detail for you, people with this need can come to learn, I hope you can gain something.

# these three concepts are very important in the field of CDS extensibility!

(1) Extensible CD view: developed by SAP, such as I _ products.

(2) extensions include views: developed by SAP, such as E_ products. There is a central guideline for this view.

(3) extended view: when a customer publishes changes to an extended field using the S4 extension tool, the system automatically generates

# guidelines

Never code directly on the extended inclusion view. It is used only as a position cage for the S4 expansion tool. That is, it is used internally by the framework, not designed for application use.

Once an extension field is created, it will not be attached to the extension inclusion view (although you can still see the extension field in the base SQL view of the extension containing view), but will be attached to the extension view.

Instead, you can find the appropriate extended view with the following tooltip:

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