https://devzone.nordicsemi.com/f/nordic-q-a/10369/adding-manufacturer-data-to-proximity-beaconHi, In the ble_app_proximity project in SDK 0.9.2, I was trying to add manufacturer data to the beacon. Here are some of the code snippets which I changed in main.c #define APP_BEACON_INFO_LENGTH 0x17 /**&lt; Total length of information advertised byen-USTelligent Community 13Mon, 23 Nov 2015 01:47:27 GMThttps://devzone.nordicsemi.com/thread/38479?ContentTypeID=1Mon, 23 Nov 2015 01:47:27 GMT137ad170-7792-4731-bb38-c0d22fbe4515:42c18a76-0d3b-4099-abd0-862311f9b02eAnk<p>Thanks! You were correct it is due to the excess data in the advertising packet. I will try to add some of the data in the scan response.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/38478?ContentTypeID=1Fri, 20 Nov 2015 11:40:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:206791aa-789e-41db-ba3a-648f5724710eRK<p>That almost always means you generated an error, APP_ERROR_CHECK() checked the error and went to the error handler.</p> <p>What&#39;s err_code at the end of that piece of code, if it&#39;s not zero, that&#39;s an error setting the advertising data.</p> <p>Always, always when the code appears not to do anything, check to see if you are in your error handler.</p> <p>The iBeacon data fills the advertising data completely leaving no room for anything else, so adding a name and uuids is not going to work, it won&#39;t fit. You can put a little of that in the scan response, but probably not all of it.</p><div style="clear:both;"></div>