https://devzone.nordicsemi.com/f/nordic-q-a/68758/manufacturer-specific-advertisement-data-vs-service-specific-dataWhat is difference between service specific data and manufacturer specific data in beacon nrf52840? I have written like //LG_SPECIFIC_DEVELOPMENT_START service_specific_data.service_uuid=0x4C47; service_specific_data.data.p_data=&quot;123456&quot;; What shoulden-USTelligent Community 13Thu, 26 Nov 2020 09:10:51 GMThttps://devzone.nordicsemi.com/thread/281974?ContentTypeID=1Thu, 26 Nov 2020 09:10:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e5124baa-2d44-4ace-8d96-0d23f225d9a2Jared<p>Hi,</p> <p>The manufacturer data is a field in the advertising data where two first hexadecimal numbers are your company ID while the latter are what you set them to be, in your case it would be&nbsp;m_beacon_info.</p> <p>service_specific_data is an instance of the&nbsp;ble_advdata_service_data_t struct which as the name suggests can be used to set <a href="https://devzone.nordicsemi.com/f/nordic-q-a/24305/advertising-a-service-but-not-connectable/95683#95683">service for advertising</a>. The size of&nbsp;<span>service_specific_data.data.size, should be the size of&nbsp;service_specific_data.data.p_data.</span></p> <p><span>regards</span></p> <p><span>Jared</span></p><div style="clear:both;"></div>