As of X-CUBE-MCSDK version 6.2.3, the STM32H723 microcontroller is not officially supported. The Motor Control Software Development Kit (MCSDK) primarily supports specific STM32 microcontroller series, and the STM32H723 may not be included in the supported list for this version. If the STM32H723 is not supported in version 6.2.3, you might consider checking newer versions of the MCSDK.
