While sending the data from the app to node which function call calls first to receive the sent data?

[Anitha]

I'm sending some data from nRF Connect app to node I want too see that data in firmware debugging. Where can I see that data? I mean in which function call?

[alok]

If you are using the BLE-Mesh firmware, please use corresponding "ST BLE Mesh" App from play store

If you are using the Generic model for LED on-off: The entry point is "GenericModelServer_ProcessMessageCb()"

For Vendor Model, the implementation is in Vendor.c. The entry point for message from App is "Vendor_WriteLocalDataCb()". Similarly, the read message can be seen in "ReadLocalDataCb"