How is BLE_CONN_HANDLE_INVALID changed in multiple services

Question

How is BLE_CONN_HANDLE_INVALID changed in multiple services 
 I modified the ble_sdk_app_proximity example. I added x3 services, based on the BLE Characteristics, a beginner's tutorial, and it seems to be working fine. (nrf5-ble-tutorial-characteristic-CompletedCode ported for SDK 13.zip) 
 The first service, our_service.c from the turorial, works ok. The characteristic gets updated.
The additional two (2) services did not until....... 
 It seems BLE_CONN_HANDLE_INVALID does not get changed to "VALID" or whatever. 
 So my service 2 and 3 does not update the characteristic. 
 When I comment out //p_our_service->conn_handle = BLE_CONN_HANDLE_INVALID;
both the characteristics of the two additional services are updated. 
 So it seems the first service determines the connection state. Once it is connected, conn_handle ... stays .... BLE_CONN_HANDLE_INVALID for the other services? 
 How / where can I change BLE_CONN_HANDLE_INVALID to be "VALID"?
(BLE_CONN_HANDLE_ALL)??? 
 Any help appreciated

Renix · Accepted Answer

Martin,
FIXED the problem
Your mentioning of ".. called from the function ble_evt_dispatch() .." made me re-check, and I had the calls for the two new services commented out. (Left over from testing). in ble_evt_dispatch(ble_evt_t * p_ble_evt) 
 So I uncommented the 2 new services, and it worked!!
Thanks
(I also removed the comment for //p_sr2_service->conn_handle = BLE_CONN_HANDLE_INVALID;
and //p_sr3_service->conn_handle = BLE_CONN_HANDLE_INVALID; 
 // OUR_JOB: Step 3.C, Call ble_our_service_on_ble_evt() to do housekeeping of ble connections related to our service and characteristic
ble_our_service_on_ble_evt(&m_our_service, p_ble_evt);
ble_sr2_service_on_ble_evt(&m_sr2_service, p_ble_evt);
ble_sr3_service_on_ble_evt(&m_sr3_service, p_ble_evt);

How is BLE_CONN_HANDLE_INVALID changed in multiple services

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