Forum Post: Notify any bytes by SimpleProfile Characteristic4

I check the operation in sample program "SimpleBLEPeripheral" of BLE Stack in CC2540 now.
I am going to transmit data of 4byte from Peripheral to Central in Notify.

I changed data definition of Characteristic4 of SimpleGATTProfile which was sample of Notify(1byte) as follows.

but only 1byte transmits a message.

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// Characteristic 4 Value
static uint8 simpleProfileChar4 = 0;
↓
static uint8 simpleProfileChar4[4] = { 0x12, 0x34, 0x56, 0x78 };

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I confirmed that {0x12, 0x34, 0x56, 0x78} was in SimpleProfileChar4 till GATTServApp_ProcessCharCfg() (in SimpleProfile_SetParamater()) was called.

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GATTServApp_ProcessCharCfg( SimpleProfileChar4Config, (uint8 *)SimpleProfileChar4,
   FALSE, simpleProfileAttrTbl, GATT_NUM_ATTRS(simpleProfileAttrTbl), INVALID_TASK_ID);

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surely, I do not appoint data length in GATTServApp_ProcessCharCfg().
Will it have to appoint it somewhere?

Thanks.