Some PIN formats require this parameter. If the PIN format does not need a pad digit, the callable service ignores this parameter. Table 1 shows the format of a pad digit. The PIN profile pad digit must be specified in upper case.
| Bytes | Description |
|---|---|
| 16–22 | Seven space characters |
| 23 | Character representation of a hexadecimal pad digit or a space if a pad digit is not needed. Characters must be one of these: 0–9, A–F, or a blank. |
Each PIN format supports only a pad digit in a certain range. This table lists the valid pad digits for each PIN block format.
| PIN Block Format | Output PIN Profile | Input PIN Profile |
|---|---|---|
| ECI-2 | Pad digit is not used | Pad digit is not used |
| ECI-3 | Pad digit is not used | Pad digit is not used |
| ISO-0 | F | Pad digit is not used |
| ISO-1 | Pad digit is not used | Pad digit is not used |
| ISO-2 | Pad digit is not used | Pad digit is not used |
| ISO-3 | Pad digit is not used | Pad digit is not used |
| VISA-2 | 0 through 9 | Pad digit is not used |
| VISA-3 | 0 through F | Pad digit is not used |
| VISA-4 | F | Pad digit is not used |
| 3621 | 0 through F | 0 through F |
| 3624 | 0 through F | 0 through F |
| 4704-EPP | F | Pad digit is not used |
1. The PTR Enhanced Security access control point is enabled in the active
role
2. The output PIN profile specifies 3621 or 3624 as the PIN-block format
3. The output PIN profile specifies a decimal digit (0-9) as the PAD digit