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Custom References

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By default, IO generates order references in the format ABCD-1234. With custom reference formats, you can define your own pattern.

Setting a format

Configure your reference format in Settings > Custom references. You must include {{ random }} to ensure the reference is unique.

Use cases

  • Include your event name or abbreviation in references
  • Match an existing numbering system
  • Create references that are easier to communicate verbally

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