https://devzone.nordicsemi.com/f/nordic-q-a/86248/nrf-connect-sdk---mesh-communicationHi, We need to refer detailed documentation of BLE mesh functionality which describes right from packet received on gatt layer to mesh also we need to refer mesh document which describes customizing model for customized application thank youen-USTelligent Community 13Mon, 28 Mar 2022 09:21:19 GMThttps://devzone.nordicsemi.com/thread/360210?ContentTypeID=1Mon, 28 Mar 2022 09:21:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fb0c4fc9-483f-4491-8db1-8b7304267313Hung Bui<p>Hi Hitesh,&nbsp;</p> <p>I would suggest to have a look at&nbsp;these 3 sources of documentation:</p> <p><br />- Bluetooth Mesh in NCS documentation:&nbsp;<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/ug_bt_mesh.html">https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/ug_bt_mesh.html</a>&nbsp;</p> <p>&nbsp;You can find the documentation about creating a vendor specific model here:&nbsp;<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/ug_bt_mesh_vendor_model.html">https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/ug_bt_mesh_vendor_model.html</a></p> <p></p> <p>- Bluetooth Mesh Profile&nbsp;in Zephyr:&nbsp;<a href="https://docs.zephyrproject.org/latest/reference/bluetooth/mesh.html">https://docs.zephyrproject.org/latest/reference/bluetooth/mesh.html</a></p> <p>- Bluetooth Mesh profile specification:&nbsp;<a href="https://www.bluetooth.com/specifications/specs/mesh-profile-1-0-1/">https://www.bluetooth.com/specifications/specs/mesh-profile-1-0-1/</a></p> <p></p> <p>Other than that if you want to go deeper into the implementation, I think the only way is to have a look at the source code of the mesh stack in the SDK.&nbsp;</p><div style="clear:both;"></div>