Supported Start Releases
A one-step conversion from a minimum released level is supported in SAP S/4HANA foundation.
SAP S/4HANA foundation is not allowed to be used standalone but only as a foundation in combination with an ABAP add-on.
Therefore, the supported start releases for a conversion of SAP S/4HANA foundation also depend on the source and target stack of the installed add-on. For more information , see the add-on specific conversion information in which the SAP S/4HANA Foundation chapter is included.
Check the release information note for the target product version of SAP S/4HANA foundation for the supported start releases with regard to the foundation and the required feature package stack equivalencies. For more information, see Documentation, Tools, and SAP Notes for the Conversion.