CDS Projection View parameters not allowed

[AbhishekSharma]

Hi Gurus,

I am seeing below error when trying to create Projection view. Please help what I am missing...

@Ramjeekorada @Ramjee_korada 

Thanks-

Abhishek

[MioYasutake]

@AbhishekSharma 

The error indicates that parameters are not permitted in CDS views intended for transactional processing. If this is a read-only scenario, consider removing the 'root' keyword from the view definition.

[axel_brke3]

I have the same issue and saw your post.

Could you please elaborate? When I define a Projection View ADT forces me to use the root keyword. 

Your help ist greatly appreciated!

[cesar_gr]

Hi 
the another way is use only a cds view without projection in your case you could be use directly ZI_EWM_OUTBDELIV_DET CDS view. this cds can be used to create a List page fiori elements app with both parameters like obligatory fields

best Regards!

[axel_brke3]

This is what we are doing. But then I don't understand the use of projection views if I cannot use them in all cases. E.g. we use Parameters a alot because they allow more control in terms of performance so we don't use projection views so far. I cannot really grasp the concept here

[c_gutierrez_stk]

Hi.

this is because the new CDS entity view not supports parameters on projection cds views. 

in sap documentation you will find this   

the only one cds view entity that supports parameters is the analytical query

Regards