S4 Conversion - ABAP tools to be used ADT( Eclipse ) or BTP ABAP ?

[KumarAakash]

Hello - 

This question could be asked in multiple forum but is there any consolidation view which IDE is best fit for which kind of ABAP development . As business are transforming SAP ERP To S4 ( Green field , Brown field ) - carrying old legacy exits , implicit enhancement.. which ABAP development tool should be used - 

SAP GUI - still continues to ABAPer to go tool ?

ADT - Eclipse is to go tool now in S4 ( Private cloud , self managed S4 system ) 

BAS - ABAP cloud ... 

thanks

aakash  

[junwu]

bas has nothing to do with abap

[KumarAakash]

Hi - check this url - https://discovery-center.cloud.sap/missiondetail/3061/

SAP BTP ABAP environment	Develop ABAP Cloud apps and extensions, leveraging innovations of SAP HANA.
	SAP Business Application Studio OptionalInfo Label	Develop, debug, test, and deploy SAP business applications.