https://devzone.nordicsemi.com/f/nordic-q-a/75010/ancs-message-lengthHi, I&#39;ve got ANCS working well in my application, but I seem unable to increase the length of the notification&#39;s message that I receive. BLE_ANCS_ATTR_DATA_MAX is defined in nrf_ble_ancs_c.h as 32 - but it feels like it&#39;s not expected that we changeen-USTelligent Community 13Tue, 11 May 2021 15:13:21 GMThttps://devzone.nordicsemi.com/thread/309300?ContentTypeID=1Tue, 11 May 2021 15:13:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:439df48a-12ee-4f16-8a7d-9b110c7c1a93Gordon<p>Sorry - totally my fault.</p> <p>Literally all you need is to increase&nbsp;<span>BLE_ANCS_ATTR_DATA_MAX. I was just increasing it on the *wrong* nRF SDK version (the app has to target different SDKs for different devices).</span></p> <p><span></span></p> <p><span>It still needs the code change in the Nordic SDK to work (which feels like a bit&nbsp;of a shame). But otherwise is fine.</span></p> <p><span></span></p> <p><span>I&#39;d just suggest removing the check &quot;&nbsp;|| (len &gt; BLE_ANCS_ATTR_DATA_MAX)&quot; in nrf_ble_ancs_c_attr_add - then you can leave&nbsp;BLE_ANCS_ATTR_DATA_MAX (and the associated app_id buffer) the same size and everything seems to work great</span></p><div style="clear:both;"></div>