---
title: supplementalPayloadString
framework: vision
role: symbol
role_heading: Instance Property
path: vision/barcodeobservation/supplementalpayloadstring
---

# supplementalPayloadString

The supplemental code decoded as a string value.

## Declaration

```swift
let supplementalPayloadString: String?
```

## See Also

### Getting the payload

- [payloadData](vision/barcodeobservation/payloaddata.md)
- [payloadString](vision/barcodeobservation/payloadstring.md)
- [supplementalPayloadData](vision/barcodeobservation/supplementalpayloaddata.md)