samples: cellular: Add modem JWT enabling to MQTT samples

pascal-nordic · nordicjm · commit 52c59d957229 · 2026-01-05T10:01:06.000Z
Enabling CONFIG_MODEM_JWT in prj.conf is necessary for using UUID
as the device ID. This dependency was absent in a couple
of MQTT samples, causing the compilation to discard
UUID in favor of IMEI as the device ID.

Jira: IRIS-10210

Signed-off-by: Pascal Hernandez &lt;pascal.hernandez@nordicsemi.no&gt;
diff --git a/doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst b/doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst
@@ -252,7 +252,10 @@ Bluetooth Fast Pair samples
 Cellular samples
 ----------------
 
-|no_changes_yet_note|
+* :ref:`nrf_cloud_mqtt_fota` and :ref:`nrf_cloud_mqtt_device_message` samples:
+
+  * Added support for JWT authentication by enabling the :kconfig:option:`CONFIG_MODEM_JWT` Kconfig option.
+    Enabling this option in the :file:`prj.conf` is necessary for using UUID as the device ID.
 
 Cryptography samples
 --------------------
diff --git a/samples/cellular/nrf_cloud_mqtt_device_message/prj.conf b/samples/cellular/nrf_cloud_mqtt_device_message/prj.conf
@@ -12,6 +12,7 @@ CONFIG_NRF_CLOUD=y
 CONFIG_NRF_CLOUD_MQTT=y
 CONFIG_NRF_CLOUD_CHECK_CREDENTIALS=y
 CONFIG_NRF_CLOUD_CLIENT_ID_SRC_INTERNAL_UUID=y
+CONFIG_MODEM_JWT=y
 
 # MQTT
 CONFIG_MQTT_KEEPALIVE=120
diff --git a/samples/cellular/nrf_cloud_mqtt_fota/prj.conf b/samples/cellular/nrf_cloud_mqtt_fota/prj.conf
@@ -12,6 +12,7 @@ CONFIG_NRF_CLOUD=y
 CONFIG_NRF_CLOUD_MQTT=y
 CONFIG_NRF_CLOUD_CHECK_CREDENTIALS=y
 CONFIG_NRF_CLOUD_CLIENT_ID_SRC_INTERNAL_UUID=y
+CONFIG_MODEM_JWT=y
 
 # MQTT
 CONFIG_MQTT_KEEPALIVE=120
