ABAP Tasks in S/4Hana Implementation

[Former Member]

Hi All,

I would like to know what kind of custom ABAP development objects we develop in S/4Hana

I have gone through the SAP documents and demo sites, and i noticed SAP has delivered three types of UI applications like Fiori, Webdynpro ABAP and SAP GUI for HTML. I have worked on all these three technologies in ECC, Now i would like to know what kind of custom applications we develop in S/4Hana.

Can someone please clarify below quires.

1. I Want to develop a custom report based on customer requirement, what is the best method? Can we use CDS, AMDP, Normal ABAP Report with Select quires or develop a report with CDS, AMDP plus normal SQL quires?
2. I want to develop a service for fiori transactional application what kind of ABAP code we need to write? combination all CDS, AMDP and SQL Operations?
3. I also noticed we can develop one CDS view and can be used in all three technologies like CDS view as ODATA service, Develop a FPM application with CDS view and Develop a R3 ALV report with CDS.
4. When to develop normal report ? when to use BI tools?

Thanks in advance.

Cheers.       

[Former Member]

Hi,

1.

Start with new Open SQL(in case of one time query)

Use CDS in case of reuse scenario

AMDP can be used if required performance can't be achieved using open SQL or CDS

2. Depends on the requirement

3. Yes CDS are versatile and promising in reuse scenario.

4. Again depends on scenario. e.g. If BI already has a working view, you may consume it using External view in ABAP. Using BI tools means that you need to have DB level authorization in HANA studio whereas for developing CDS/AMDP, you just need ABAP authorization.

Thanks,

Sumit