https://devzone.nordicsemi.com/f/nordic-q-a/6779/vs-uuids-with-s130-1-0-0-3-alphaHi all I tried to add a vendor specific 128bit UUID with the function sd_ble_uuid_vs_add. It worked and I received the custom UUID type (0x02). Afterwards I tried to add the same UUID again and I expected to receive the status NRF_ERROR_FORBIDDEN,en-USTelligent Community 13Wed, 29 Apr 2015 08:51:38 GMThttps://devzone.nordicsemi.com/thread/23813?ContentTypeID=1Wed, 29 Apr 2015 08:51:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:198811b0-1cc0-47f6-83c9-b24ff1fbddd2Carles<p>Hi there,</p> <p>First of all, thanks for reporting this.</p> <p>I see there is a mistake in the documentation of this function. In reality when you add an UUID that you have already added, you will get NRF_SUCCESS <strong>and</strong> you will get its type in p_uuid_type. That allows you to add it multiple times (perhaps from multiple modules) and still each module getting the exact same type.</p> <p>Apologies for the mistake in the documentation, we will fix this internally ASAP.</p> <p><strong>Edit</strong>: Replying to your additional questions: No, you cannot clear (or remove UUIDs from) the list at all. The only way to clear it is to disable and then re-enable the SD via sd_softdevice_disable() and then sd_softdevice_enable() and sd_ble_enable(). You can however add UUIDs at <strong>any time</strong> during SD execution.</p> <p>Thanks,</p> <p>Carles</p><div style="clear:both;"></div>