Hi,
This is due to the OSIF related function being available under the "OsIf_rtd_fatfs.c" file, which is available under the SDHC stack:
"C:\nxp\S32DS.3.4\S32DS\software\PlatformSDK_S32XX_2022_03\stacks\sdhc\code\osif"
Since MemDal/Eep modules make reference to the SDHC stack, the compiler can take this reference. Once they are disabled, all references are lost, hence it is not finding them.
You could delete all MemDal references under SysDal, but still have enabled the modules for the SDHC reference.
Also, you could try and move these functions to a different file, but we understand that they may have several links that need to be accomplished. Care should be taken.
Please, let us know.