---
title: pinMessageIndices
framework: cryptotokenkit
role: symbol
role_heading: Instance Property
path: cryptotokenkit/tksmartcarduserinteractionforpinoperation/pinmessageindices
---

# pinMessageIndices

A list of message indices referring to a predefined message table, used to specify the type and number of messages displayed during the PIN operation. nil by default.

## Declaration

```swift
var pinMessageIndices: [NSNumber]? { get set }
```

## Discussion

Discussion If nil, the reader does not display any message (reader specific). Typically, PIN verification takes 1 message; PIN modification takes 1 – 3 messages.

## See Also

### Configuring Messages

- [locale](cryptotokenkit/tksmartcarduserinteractionforpinoperation/locale.md)