PSoC 4100 BLE, PSoC 4200 BLE, PSoC 4100M, PSoC 4200M, PSoC 4200L, PSoC 4000S, PSOC 4100S, PSOC 4100S Plus all support SFALSH resource. If current device supports SFLASH, then you can find CySysSFlashWriteUserRow() API is enabled in cyboot-->Flash.c file, or the API is disabled.
Thanks. We see this definition. will have a try