https://devzone.nordicsemi.com/f/nordic-q-a/19280/when-i-use-additional-vs-uuid-should-iWhen I use additional VS UUID, should I use sd_ble_uuid_vs_add(), se_ble_gatts_service_add() in order? example, sd_ble_uuid_vs_add(); &lt;- VS1 UUID se_ble_gatts_service_add(); &lt;- Service1 related to VS1 se_ble_gatts_service_add(); &lt;- Service2 relateden-USTelligent Community 13Mon, 30 Jan 2017 09:53:07 GMThttps://devzone.nordicsemi.com/thread/74726?ContentTypeID=1Mon, 30 Jan 2017 09:53:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:90f69bca-3384-4232-802b-cbcafff814c6JoonDong<p>Oh... you are very kindly.. I didn&#39;t think about creating ble_uuid_2 variable..</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/74727?ContentTypeID=1Mon, 30 Jan 2017 09:03:49 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2a199052-07f3-448a-9348-5304a3eddda0FormerMember<p>I just tested here, and what you want to do works fine.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/74728?ContentTypeID=1Mon, 30 Jan 2017 04:45:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:39df8bd5-550d-4df9-9cb5-29bb8a5f8d82JoonDong<p>But does sd_ble_uuid_vs_add() function ouput uuid type of p_vs_uuid in p_uuid_type parameter? And p_uuid_type is one of three: BLE_UUID_TYPE_UNKNOWN, BLE_UUID_TYPE_BEL, BLE_UUID_TYPE_VENDOR_BEGIN. Then when adding service, it input the p_uuid_type in sd_ble_gatts_service_add()&#39;s paramter in uart example. But if I add VS UUID twice and then add service, I think softdevice add service in latest added VS UUID, doesn&#39;t it?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/74725?ContentTypeID=1Fri, 27 Jan 2017 15:26:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f0d47d58-935f-4415-8903-ce46fb14649dFormerMember<p>Yes, you can add the UUIDs first and then add the services.</p> <p>The output parameter of <code>sd_ble_uuid_vs_add()</code>, p_uuid_type, is the reference to the added UUID. For how to refer to an added UUID when adding a service to it, see the example ble_app_uart --&gt; function ble_nus_init().</p> <p><strong>Update 30.01.2017:</strong> It is no problem to first add two UUIDs and then add the first UUID to a service: <img src="https://devzone.nordicsemi.com/cfs-file/__key/communityserver-discussions-components-files/4/uuid_5F00_vs_5F00_add.png" alt="image description" /></p><div style="clear:both;"></div>