Changing a value on the database dinamically

Hi guys,

I'm following up a question I've posted here (https://support.dialog-semiconductor.com/forums/post/dialog-smartbond-bl...–-software/reading-dummy-value) and it's not fully answered to my needs.

I'm trying to set a dummy value in my Bluetooth services, which I've already done this way:

On file @user_custs1_impl.c

void updating_device_id()
{
struct custs1_val_set_req *req = KE_MSG_ALLOC_DYN(CUSTS1_VAL_SET_REQ,
prf_get_task_from_id(TASK_ID_CUSTS1),
TASK_APP,
custs1_val_set_req,
DEF_SVC1_DEVICE_ID_CHAR_LEN);

// ADC value to be sampled
static uint16_t sample;
sample = 1234;

//req->conhdl = app_env->conhdl;
req->handle = SVC1_IDX_DEVICE_ID_VAL;
req->length = DEF_SVC1_DEVICE_ID_CHAR_LEN;
//req->notification = true;
memcpy(req->value, &sample, DEF_SVC1_DEVICE_ID_CHAR_LEN);

ke_msg_send(req);
}

void updating_major()
{
struct custs1_val_set_req *req = KE_MSG_ALLOC_DYN(CUSTS1_VAL_SET_REQ,
prf_get_task_from_id(TASK_ID_CUSTS1),
TASK_APP,
custs1_val_set_req,
DEF_SVC1_MAJOR_CHAR_LEN);

// ADC value to be sampled
static uint16_t sample;
sample = 4536;

//req->conhdl = app_env->conhdl;
req->handle = SVC1_IDX_MAJOR_VAL;
req->length = DEF_SVC1_MAJOR_CHAR_LEN;
//req->notification = true;
memcpy(req->value, &sample, DEF_SVC1_MAJOR_CHAR_LEN);

ke_msg_send(req);
}

void updating_minor()
{
struct custs1_val_set_req *req = KE_MSG_ALLOC_DYN(CUSTS1_VAL_SET_REQ,
prf_get_task_from_id(TASK_ID_CUSTS1),
TASK_APP,
custs1_val_set_req,
DEF_SVC1_MINOR_CHAR_LEN);

static uint16_t sample;
sample = 0xA0AA;
//req->conhdl = app_env->conhdl;
申请- >处理= SVC1_IDX_MINOR_VAL;
req->length = DEF_SVC1_MINOR_CHAR_LEN;
//req->notification = true;
memcpy(req->value, &sample, DEF_SVC1_MINOR_CHAR_LEN);

ke_msg_send(req);
}

void updating_location()
{
struct custs1_val_set_req *req = KE_MSG_ALLOC_DYN(CUSTS1_VAL_SET_REQ,
prf_get_task_from_id(TASK_ID_CUSTS1),
TASK_APP,
custs1_val_set_req,
DEF_SVC1_LOCATION__CHAR_LEN);

// ADC value to be sampled
static uint16_t sample;
sample = 6435;

//req->conhdl = app_env->conhdl;
req->handle = SVC1_IDX_LOCATION_VAL;
req->length = DEF_SVC1_LOCATION__CHAR_LEN;
//req->notification = true;
memcpy(req->value, &sample, DEF_SVC1_LOCATION__CHAR_LEN);

ke_msg_send(req);
}

file @user_peripheral.c
void user_app_connection(uint8_t connection_idx, struct gapc_connection_req_ind const *param)
{
if (app_env[connection_idx].conidx != GAP_INVALID_CONIDX)
{
app_connection_idx = connection_idx;

// Stop the advertising data update timer
app_easy_timer_cancel(app_adv_data_update_timer_used);
updating_device_id();
updating_major();
updating_minor();
updating_location();

...
}

Basically, I'm setting the values on my database on connection between the board and the app. My question is: how can I change dinamically those values?
As an example, if I read the value once, I would like to add 0x0001 to the stored value on my database and show the new value on my next Read command.

I was trying to do it on the user_catch_rest_hndl function, specifically on the case CUSTS1_ATT_INFO_REQ. But that's not working at all. Any tips?
I'm using the ble_pheriperal example of the SDK 6.0.6 to build my code.