diff --git a/include/zephyr/net/lwm2m.h b/include/zephyr/net/lwm2m.h
index c667876f966..81af75ca95b 100644
--- a/include/zephyr/net/lwm2m.h
+++ b/include/zephyr/net/lwm2m.h
@@ -610,6 +610,8 @@ struct lwm2m_objlnk {
 /**
  * @brief Change an observer's pmin value.
  *
+ * @deprecated Use lwm2m_update_observer_min_period() instead.
+ *
  * LwM2M clients use this function to modify the pmin attribute
  * for an observation being made.
  * Example to update the pmin of a temperature sensor value being observed:
@@ -621,12 +623,32 @@ struct lwm2m_objlnk {
  *
  * @return 0 for success or negative in case of error.
  */
+__deprecated
 int lwm2m_engine_update_observer_min_period(struct lwm2m_ctx *client_ctx, const char *pathstr,
 					    uint32_t period_s);
 
+/**
+ * @brief Change an observer's pmin value.
+ *
+ * LwM2M clients use this function to modify the pmin attribute
+ * for an observation being made.
+ * Example to update the pmin of a temperature sensor value being observed:
+ * lwm2m_update_observer_min_period(client_ctx, &LWM2M_OBJ(3303, 0, 5700), 5);
+ *
+ * @param[in] client_ctx LwM2M context
+ * @param[in] path LwM2M path as a struct
+ * @param[in] period_s Value of pmin to be given (in seconds).
+ *
+ * @return 0 for success or negative in case of error.
+ */
+int lwm2m_update_observer_min_period(struct lwm2m_ctx *client_ctx,
+				     const struct lwm2m_obj_path *path, uint32_t period_s);
+
 /**
  * @brief Change an observer's pmax value.
  *
+ * @deprecated Use lwm2m_update_observer_max_period() instead.
+ *
  * LwM2M clients use this function to modify the pmax attribute
  * for an observation being made.
  * Example to update the pmax of a temperature sensor value being observed:
@@ -638,9 +660,27 @@ int lwm2m_engine_update_observer_min_period(struct lwm2m_ctx *client_ctx, const
  *
  * @return 0 for success or negative in case of error.
  */
+__deprecated
 int lwm2m_engine_update_observer_max_period(struct lwm2m_ctx *client_ctx, const char *pathstr,
 					    uint32_t period_s);
 
+/**
+ * @brief Change an observer's pmax value.
+ *
+ * LwM2M clients use this function to modify the pmax attribute
+ * for an observation being made.
+ * Example to update the pmax of a temperature sensor value being observed:
+ * lwm2m__update_observer_max_period(client_ctx, &LWM2M_OBJ(3303, 0, 5700), 5);
+ *
+ * @param[in] client_ctx LwM2M context
+ * @param[in] path LwM2M path as a struct
+ * @param[in] period_s Value of pmax to be given (in seconds).
+ *
+ * @return 0 for success or negative in case of error.
+ */
+int lwm2m_update_observer_max_period(struct lwm2m_ctx *client_ctx,
+				     const struct lwm2m_obj_path *path, uint32_t period_s);
+
 /**
  * @brief Create an LwM2M object instance.
  *
@@ -1664,6 +1704,8 @@ int lwm2m_update_device_service_period(uint32_t period_ms);
 /**
  * @brief Check whether a path is observed
  *
+ * @deprecated Use lwm2m_path_is_observed() instead.
+ *
  * @param[in] pathstr LwM2M path string to check, e.g. "3/0/1"
  *
  * @return true when there exists an observation of the same level
@@ -1672,8 +1714,22 @@ int lwm2m_update_device_service_period(uint32_t period_ms);
  *         E.g. true if path refers to a resource and the parent object has an
  *         observation, false for the inverse.
  */
+__deprecated
 bool lwm2m_engine_path_is_observed(const char *pathstr);
 
+/**
+ * @brief Check whether a path is observed
+ *
+ * @param[in] path LwM2M path as a struct to check
+ *
+ * @return true when there exists an observation of the same level
+ *         or lower as the given path, false if it doesn't or path is not a
+ *         valid LwM2M-path.
+ *         E.g. true if path refers to a resource and the parent object has an
+ *         observation, false for the inverse.
+ */
+bool lwm2m_path_is_observed(const struct lwm2m_obj_path *path);
+
 /**
  * @brief Stop the LwM2M engine
  *
diff --git a/subsys/net/lib/lwm2m/lwm2m_observation.c b/subsys/net/lib/lwm2m/lwm2m_observation.c
index db85a4ab633..74ef9d2c99a 100644
--- a/subsys/net/lib/lwm2m/lwm2m_observation.c
+++ b/subsys/net/lib/lwm2m/lwm2m_observation.c
@@ -199,7 +199,7 @@ int lwm2m_notify_observer(uint16_t obj_id, uint16_t obj_inst_id, uint16_t res_id
 	return lwm2m_notify_observer_path(&path);
 }
 
-static int engine_observe_get_attributes(struct lwm2m_obj_path *path,
+static int engine_observe_get_attributes(const struct lwm2m_obj_path *path,
 					 struct notification_attrs *attrs, uint16_t srv_obj_inst)
 {
 	struct lwm2m_engine_obj *obj;
@@ -905,7 +905,7 @@ const char *lwm2m_engine_get_attr_name(const struct lwm2m_attr *attr)
 }
 
 static int lwm2m_engine_observer_timestamp_update(sys_slist_t *observer,
-						  struct lwm2m_obj_path *path,
+						  const struct lwm2m_obj_path *path,
 						  uint16_t srv_obj_inst)
 {
 	struct observe_node *obs;
@@ -947,7 +947,7 @@ static int lwm2m_engine_observer_timestamp_update(sys_slist_t *observer,
 
 /* input / output selection */
 
-int lwm2m_get_path_reference_ptr(struct lwm2m_engine_obj *obj, struct lwm2m_obj_path *path,
+int lwm2m_get_path_reference_ptr(struct lwm2m_engine_obj *obj, const struct lwm2m_obj_path *path,
 				 void **ref)
 {
 	struct lwm2m_engine_obj_inst *obj_inst;
@@ -997,22 +997,16 @@ int lwm2m_get_path_reference_ptr(struct lwm2m_engine_obj *obj, struct lwm2m_obj_
 	return 0;
 }
 
-int lwm2m_engine_update_observer_min_period(struct lwm2m_ctx *client_ctx, const char *pathstr,
-					    uint32_t period_s)
+int lwm2m_update_observer_min_period(struct lwm2m_ctx *client_ctx,
+				     const struct lwm2m_obj_path *path, uint32_t period_s)
 {
 	int ret;
-	struct lwm2m_obj_path path;
 	struct notification_attrs nattrs = {0};
 	struct notification_attrs attrs = {0};
 	void *ref;
 
-	ret = lwm2m_string_to_path(pathstr, &path, '/');
-	if (ret < 0) {
-		return ret;
-	}
-
 	/* Read Reference pointer to attribute */
-	ret = lwm2m_get_path_reference_ptr(NULL, &path, &ref);
+	ret = lwm2m_get_path_reference_ptr(NULL, path, &ref);
 	if (ret < 0) {
 		return ret;
 	}
@@ -1028,7 +1022,7 @@ int lwm2m_engine_update_observer_min_period(struct lwm2m_ctx *client_ctx, const
 	}
 
 	/* Read Pmin & Pmax values for path */
-	ret = engine_observe_get_attributes(&path, &attrs, client_ctx->srv_obj_inst);
+	ret = engine_observe_get_attributes(path, &attrs, client_ctx->srv_obj_inst);
 	if (ret < 0) {
 		return ret;
 	}
@@ -1041,22 +1035,30 @@ int lwm2m_engine_update_observer_min_period(struct lwm2m_ctx *client_ctx, const
 	return lwm2m_update_or_allocate_attribute(ref, LWM2M_ATTR_PMIN, &period_s);
 }
 
-int lwm2m_engine_update_observer_max_period(struct lwm2m_ctx *client_ctx, const char *pathstr,
+int lwm2m_engine_update_observer_min_period(struct lwm2m_ctx *client_ctx, const char *pathstr,
 					    uint32_t period_s)
 {
 	int ret;
 	struct lwm2m_obj_path path;
-	void *ref;
-	struct notification_attrs nattrs = {0};
-	struct notification_attrs attrs = {0};
 
 	ret = lwm2m_string_to_path(pathstr, &path, '/');
 	if (ret < 0) {
 		return ret;
 	}
 
+	return lwm2m_update_observer_min_period(client_ctx, &path, period_s);
+}
+
+int lwm2m_update_observer_max_period(struct lwm2m_ctx *client_ctx,
+				     const struct lwm2m_obj_path *path, uint32_t period_s)
+{
+	int ret;
+	void *ref;
+	struct notification_attrs nattrs = {0};
+	struct notification_attrs attrs = {0};
+
 	/* Read Reference pointer to attribute */
-	ret = lwm2m_get_path_reference_ptr(NULL, &path, &ref);
+	ret = lwm2m_get_path_reference_ptr(NULL, path, &ref);
 	if (ret < 0) {
 		return ret;
 	}
@@ -1072,7 +1074,7 @@ int lwm2m_engine_update_observer_max_period(struct lwm2m_ctx *client_ctx, const
 	}
 
 	/* Read Pmin & Pmax values for path */
-	ret = engine_observe_get_attributes(&path, &attrs, client_ctx->srv_obj_inst);
+	ret = engine_observe_get_attributes(path, &attrs, client_ctx->srv_obj_inst);
 	if (ret < 0) {
 		return ret;
 	}
@@ -1089,10 +1091,24 @@ int lwm2m_engine_update_observer_max_period(struct lwm2m_ctx *client_ctx, const
 	}
 
 	/* Update Observer timestamp */
-	return lwm2m_engine_observer_timestamp_update(&client_ctx->observer, &path,
+	return lwm2m_engine_observer_timestamp_update(&client_ctx->observer, path,
 						      client_ctx->srv_obj_inst);
 }
 
+int lwm2m_engine_update_observer_max_period(struct lwm2m_ctx *client_ctx, const char *pathstr,
+					    uint32_t period_s)
+{
+	int ret;
+	struct lwm2m_obj_path path;
+
+	ret = lwm2m_string_to_path(pathstr, &path, '/');
+	if (ret < 0) {
+		return ret;
+	}
+
+	return lwm2m_update_observer_max_period(client_ctx, &path, period_s);
+}
+
 struct lwm2m_attr *lwm2m_engine_get_next_attr(const void *ref, struct lwm2m_attr *prev)
 {
 	struct lwm2m_attr *iter = (prev == NULL) ? write_attr_pool : prev + 1;
@@ -1348,28 +1364,34 @@ int lwm2m_write_attr_handler(struct lwm2m_engine_obj *obj, struct lwm2m_message
 	return 0;
 }
 
+bool lwm2m_path_is_observed(const struct lwm2m_obj_path *path)
+{
+	int i;
+	struct observe_node *obs;
+	struct lwm2m_ctx **sock_ctx = lwm2m_sock_ctx();
+
+	for (i = 0; i < lwm2m_sock_nfds(); ++i) {
+		SYS_SLIST_FOR_EACH_CONTAINER(&sock_ctx[i]->observer, obs, node) {
+
+			if (lwm2m_notify_observer_list(&obs->path_list, path)) {
+				return true;
+			}
+		}
+	}
+	return false;
+}
+
 bool lwm2m_engine_path_is_observed(const char *pathstr)
 {
-	struct observe_node *obs;
-	struct lwm2m_obj_path path;
 	int ret;
-	int i;
-	struct lwm2m_ctx **sock_ctx = lwm2m_sock_ctx();
+	struct lwm2m_obj_path path;
 
 	ret = lwm2m_string_to_path(pathstr, &path, '/');
 	if (ret < 0) {
 		return false;
 	}
 
-	for (i = 0; i < lwm2m_sock_nfds(); ++i) {
-		SYS_SLIST_FOR_EACH_CONTAINER(&sock_ctx[i]->observer, obs, node) {
-
-			if (lwm2m_notify_observer_list(&obs->path_list, &path)) {
-				return true;
-			}
-		}
-	}
-	return false;
+	return lwm2m_path_is_observed(&path);
 }
 
 int lwm2m_engine_observation_handler(struct lwm2m_message *msg, int observe, uint16_t accept,
diff --git a/subsys/net/lib/lwm2m/lwm2m_observation.h b/subsys/net/lib/lwm2m/lwm2m_observation.h
index d90890cc65c..04e0db67101 100644
--- a/subsys/net/lib/lwm2m/lwm2m_observation.h
+++ b/subsys/net/lib/lwm2m/lwm2m_observation.h
@@ -72,7 +72,7 @@ void lwm2m_engine_path_list_init(sys_slist_t *lwm2m_path_list, sys_slist_t *lwm2
 int lwm2m_engine_add_path_to_list(sys_slist_t *lwm2m_path_list, sys_slist_t *lwm2m_free_list,
 				  struct lwm2m_obj_path *path);
 
-int lwm2m_get_path_reference_ptr(struct lwm2m_engine_obj *obj, struct lwm2m_obj_path *path,
+int lwm2m_get_path_reference_ptr(struct lwm2m_engine_obj *obj, const struct lwm2m_obj_path *path,
 				 void **ref);
 
 /**