ISO 8583 · Data fields
Field 27 Authorizing ID Response Length
What this field describes
The profile label identifies the length of an authorizing ID response. The field itself has a one byte container.
Keep the described response length distinct from the length of this field on the wire.
Compare the two profiles
| Setting | default | default_ascii |
|---|---|---|
| Value encoding | ASCII | ASCII |
| Length limit | Exactly 1 byte | Exactly 1 byte |
| Prefix | None | None |
Length limits describe encoded values. They exclude any length prefix. The profiles can be customized; these settings do not establish the required fields or accepted values for a live connection.
Read the field boundary
Field 27
1 byteASCII valueRead exactly 1 value byte. The next field begins immediately afterwards under this profile; no length prefix belongs to this field.
Find it in the bitmap
- Bitmap
- Primary
- Position
- 27
- Byte
- 4
- Bit in byte
- 3
Positions start at one. Bits are counted from the most significant bit of each bitmap byte. This calculation locates the field’s presence indicator, not its value.