This optional user-defined key-value object field can be used with external operations to provide additional context or supplementary custom information for the operation.

The Pismo platform does not perform any validation or processing on this field but passes this object to the acquirer in transactions involving calls to the acquirer and sends it in the events related to the stream of data produced at the end of the request.

Note: This field must not be used to send Personally Identifiable Information (PII), Payment Card Industry (PCI) data, or any sensitive/regulated information. Metadata fields are intended for operational, non-sensitive data only. For sensitive data, use the specific parameters designed for that purpose. For more information, refer to Get started with Pismo APIs.