https://devzone.nordicsemi.com/f/nordic-q-a/20018/generic-service-uuid-selection-errorHi! I try to create a custom service. To do that I copied the ble_bas service and followed this guide. You can see my init function here: #define APP_UUID {{ 0xC0, 0xBE, 0xBA, 0xEE, 0xFF, 0xC0,0xBE, 0xBA, 0xEE, 0xFF, 0xC0,0xBE, 0xBA, 0xEE, 0xFFen-USTelligent Community 13Mon, 27 Feb 2017 13:14:53 GMThttps://devzone.nordicsemi.com/thread/77928?ContentTypeID=1Mon, 27 Feb 2017 13:14:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c906d463-e596-4253-85a7-99bf24b62358Yatekii<p>Thank you, that did that trick! I have some other stuff not working yet but I am positive I can fix that :)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/77927?ContentTypeID=1Mon, 27 Feb 2017 11:02:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5d03ab4e-ebb7-4b83-9d05-343fafe09333J&#248;rgen Kvalvaag<p>You are forgetting to set the <code>ble_uuid.uuid</code> value.</p> <p>Add the line <code>ble_uuid.uuid = 0xBAEE;</code> before the call to <code>sd_ble_gatts_service_add()</code></p><div style="clear:both;"></div>