Overview

Meta has begun issuing warnings to users regarding currency mismatches between browser events and server-side Conversions API (CAPI) hits. These warnings highlight discrepancies in the currency and value reported between the two tracking methods.

What Are CAPI Hits?

CAPI hits refer to the conversion data sent to Facebook using the Facebook Conversions API. CAPI is a server-side tracking tool that complements the Facebook Pixel by enabling businesses to share customer interactions even when traditional tracking methods may fail, such as when users have ad blockers or cookies disabled.

Why Is CAPI Important?

CAPI enhances data reliability and accuracy that can help you to track a variety of events (e.g., purchases, signups, and page views) directly from your server to Facebook. This direct connection allows for improved ad targeting and campaign effectiveness by ensuring that businesses capture all relevant customer interactions.

What To Do If You See This Warning?

If You Encounter the Currency Mismatch Warning:

• Don't Panic: The Meta team has confirmed that this warning does not indicate an issue in the case of Elevar's setup, and your ads and reporting will not be affected. The warning is intended to catch inconsistencies between the pixel and the server integration in case one of the values sent is incorrect, or the CAPI event is attempting to update the value of the event (which Meta does not support).
• Understand the Context: This warning arises when the system interprets the server event as having a different value than what's shown in the browser. However, if the values are essentially the same, just reflected in different currencies, this won't lead to any problems. This warning often pops up on sites that support multiple currencies, as the value and currency are sent in the customer's currency in the pixel event, and the store currency in the CAPI event. Due to the fact that this diagnostic error does not impact your data integrity or event tracking, you can safely disregard the warning.