New Authorization Decline Result Added: AUTH_RULE

Overview

Beginning Monday, January 5th, a new value of AUTH_RULE will be available in the detailed_results of transaction events. This value serves as a fallback decline reason when an authorization rule decline cannot be mapped to a more specific reason. When this value appears, programs should reference the existing rule_results array for additional context about which rule triggered the decline.

Details

Authorization rule declines use specific detailed_results values when possible, such as CARD_SPEND_LIMIT_EXCEEDED for card velocity limit declines. However, some rule configurations do not map cleanly to existing decline reasons. In these cases, the new AUTH_RULE value indicates explicitly that an authorization rule caused the decline, and the rule_results array contains the specific rule token and explanation of the rule evaluation that triggered the decline.

Release Timeline

Production availability: January 5, 2026

User Impact

This change is additive only, however programs processing detailed_results should be prepared to receive AUTH_RULE as a detailed_results value.

Updated Documentation

For detailed transaction event specifications, visit our API Reference.

If you have any questions or concerns, please contact us via the HELP link in your Lithic Dashboard.

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