Please look at the next community post.
As you can see, the SED How to send Data from SED to Coordinator on JN5168 Module
So, if you look into the ZigBee PRO Stack User Guide ZPS_eAplAfUnicastAckDataReq
Once the sent data has reached the first hop node in the route to its destination, a ZPS_EVENT_APS_DATA_CONFIRM event will be generated on the local node.
You could read out the data that you received. PDUM_u16APduInstanceReadNBO.
Hope it helps,
Retrieving data ...