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

# supplementalPayloadString

The supplemental code decoded as a string value.

## Declaration

```swift
var supplementalPayloadString: String? { get }
```

## See Also

### Parsing the Payload

- [payloadStringValue](vision/vnbarcodeobservation/payloadstringvalue.md)
- [payloadData](vision/vnbarcodeobservation/payloaddata.md)
- [supplementalPayloadData](vision/vnbarcodeobservation/supplementalpayloaddata.md)
- [supplementalCompositeType](vision/vnbarcodeobservation/supplementalcompositetype.md)
- [isGS1DataCarrier](vision/vnbarcodeobservation/isgs1datacarrier.md)