https://devzone.nordicsemi.com/f/nordic-q-a/34861/error-opcode-status-field-6-when-bind-appkey-for-health-server-in-mesh-v2-1Hi all , when I combine light switch server and remote server in 1 Node and use Provisioner Node for provisioning and config for it . I have error Log in provisioner : Opcode = 6 is error . But number 6 indicate for what ? In Node : If i inserten-USTelligent Community 13Tue, 26 Jun 2018 14:39:43 GMThttps://devzone.nordicsemi.com/thread/137715?ContentTypeID=1Tue, 26 Jun 2018 14:39:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9d644570-b6d5-4a17-b3b8-fabc1ce885b7tesc<p>Hi,</p> <p>I see that nobody has answered this one yet so I thought I should look into it. I am very sorry that you have not gotten any response previously.</p> <p>I found that the status code is an error code, and it is the enumeration access_status_t as defined in access_status.h.</p> <p>Access status 6 is <code>ACCESS_STATUS_KEY_INDEX_ALREADY_STORED</code>, and the explanatory documentation string is &quot;The key with given index is already stored in the node with a different value.&quot;</p> <p>The keys (devkey and appkeys) are stored in a table, and if you try to add multiple keys at the same location in that table it will fail. For instance, <a href="http://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.meshsdk.v2.0.1%2Fgroup__DEVICE__STATE__MANAGER__APP__KEYS.html&amp;anchor=gaef63f7a1e24619936863885ec6120f35">dsm_appkey_add()</a> adds an application key to that table, and the first argument (<code>app_key_id</code>) is the index to use in the key table.</p> <p>Regards,<br />Terje</p><div style="clear:both;"></div>