> ## Documentation Index
> Fetch the complete documentation index at: https://help.fieldpulse.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Technical Specs

> 3 FieldPulse help articles on Technical Specs, including How to Create Custom Barcodes for Mobile Scanning and Character Limits and Validation Details.

<CardGroup cols={2}>
  <Card title="How to Create Custom Barcodes for Mobile Scanning" href="/troubleshooting/technical-specs/custom-barcodes">
    Generate Code-128 barcodes with a free web tool so the FieldPulse mobile app can scan your items, inventory, and assets.
  </Card>

  <Card title="Character Limits and Validation Details" href="/troubleshooting/technical-specs/character-limits">
    Look up character limits and validation rules before you create or import FieldPulse records, plus file size caps and stricter QuickBooks and Xero limits.
  </Card>

  <Card title="Supported Devices and Browsers Details" href="/troubleshooting/technical-specs/supported-devices-browsers">
    See which browsers and iOS, iPadOS, and Android versions FieldPulse supports, which older devices cannot run the app, and how switching devices works.
  </Card>
</CardGroup>