---
title: passTypeIdentifiers
framework: proximityreader
role: symbol
role_heading: Instance Property
path: proximityreader/customerengagementsession/configuration-swift.struct/passtypeidentifiers
---

# passTypeIdentifiers

An array of pass type identifiers for the your passes.

## Declaration

```swift
var passTypeIdentifiers: [String]
```

## Discussion

Discussion The session queries the Wallet app using this array when you request the pass attribute option in the requestCustomerInfo(for:fields:message:). The session also validates this array against AddPassRequest to ensure only the merchant supported passes are added to the Wallet.