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Metadata

The metadata field is a flexible attribute available on select objects, allowing merchants to attach custom key-value pairs for internal use. This is particularly useful for associating additional contextual information—such as an order number or customer reference ID—to streamline backend operations and integrations.
Note: Moment does not use metadata for any business logic. This field is solely intended for merchants to pass supplementary information.

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Usage Restrictions

Each metadata object is subject to the following constraints:
  • Maximum number of key-value pairs: 20
  • Key: Minimum 1 character, maximum 50 characters
  • Value: Minimum 1 character, maximum 500 characters
  • Data type: Both key and value must be strings
Do not include any sensitive information in metadata, such as credit card numbers, bank account details, or personally identifiable information (PII).