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Documentation Index

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Custom fields allow you to associate additional data with your cases using key-value pairs. This feature provides flexibility to include additional information that isn’t covered by Decisionly’s standard fields.

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Custom Field Requirements

Custom fields must adhere to the following requirements:
  • Field limit: Maximum of 25 key-value pairs per case
  • Key constraints: Each key must be 50 characters or fewer
  • Value types: Values must be strings only
  • String values: Maximum length of 250 characters

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Using Custom Fields

When creating or updating a case, you can include custom fields in your request body. These fields can be used to:
  • Store internal reference IDs
  • Include category or classification data
  • Trigger workflow rules for automated case handling
  • Store any other relevant case metadata

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Managing Custom Fields

You can create, update, and remove custom fields as needed:
  • Create/Update: Set a value for the field in your request
  • Remove: Set the field value to null to completely remove the key-value pair from the case

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Example

// POST /v2/issuer/cases
{
  "reason": "fraud",
  "cardholder": {
    "issuer_id": "9529456289",
    "name": "Jane Smith",
    "email": "jane@example.com",
    "type": "individual"
  },
  "merchant": {
    "name": "FoodHub",
    "category_code": "5812"
  },
  "transaction": {
    "arn": "48162855246353338636162",
    "date": "2026-03-01T00:00:00.000Z",
    "amount": 2990,
    "currency": "USD",
    "card": {
      "network": "mastercard",
      "type": "credit",
      "last4": "4242",
      "expiry_month": 12,
      "expiry_year": 2028
    }
  },
  "dispute": {
    "date": "2026-04-01T00:00:00.000Z",
    "amount": 2990,
    "currency": "USD",
    "raised_by": "cardholder"
  },
  "custom_fields": {
    "internal_reference_id": "REF-12345",
    "wallet_type": "mobile",
    "customer_category": "platinum",
    "card_program": "CardHub"
  }
}

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Custom Fields with Workflow Rules

Custom fields can power Decisionly’s workflow rules, enabling automated actions based on field values. When using custom fields for workflow automation:
  • Maintain consistency: Use identical string values across cases (e.g., always use “high_priority” instead of mixing with “High Priority”)
  • Document conventions: Maintain internal documentation of your custom field naming and value conventions