WhatsApp Coexistence API vs QR: why the official connection maximizes integrations with Prometheo

Currently, many companies connect their WhatsApp lines to automation solutions via a QR code. While this method is simple and functional, it presents limitations that can impact scalability, stability, and the utilization of advanced integrations.

For this reason, Prometheo recommends its clients migrate to the integration via official WhatsApp Coexistence API, which not only ensures stability and security but also enables key functionalities such as the connection with Meta Ads for campaign optimization and tracking the source of each lead.

Key differences between QR and Coexistence API

The connection via QR can sometimes be unstable, as it depends on the session open on a device and can disconnect when the application is closed or due to changes in the device. In contrast, the official integration via Coexistence API offers a stable and continuous connection, without interruptions.

The QR method is not official and, therefore, is exposed to risks of blocks or restrictions from Meta. In contrast, the Coexistence API is a certified and 100% official channel, eliminating the risk of bans.

There is no longer a need to fully delegate the line to META and lose access. The API connection allows using the same line on the mobile, on WhatsApp Web, and in Prometheo simultaneously, without losing control over the account.

Regarding incoming traffic, QR may present failures or limitations, while the API guarantees free, reliable, and unrestricted inbound.

A key point to clarify is the 24-hour window: in the case of the API, this restriction applies only within Prometheo but not on the mobile or in other web sessions, which ensures flexibility in communication.

Finally, the QR connection does not allow access to advanced integrations, like Meta Ads or the campaign module. The official API, on the other hand, opens the door to these functions and allows scaling the commercial strategy.

Strategic benefits of using the official API

The connection via API is essential to take advantage of the campaigns or bulk sending module, which allows starting conversations in an organized and segmented manner on a large scale.

Additionally, it is only through the API that it is possible to link the Smart Tags of Prometheo with the conversion events of Meta Ads, which generates more efficient and measurable campaigns.

Another key benefit is the detailed tracking of the origin of the leads: with the API, it is possible to identify from which ad or campaign each contact comes, something that is not possible with QR.

This is complemented by the security and regulatory compliance: being an official channel, the company operates without risk of blocks or sanctions from Meta.

Finally, the experience is smoother, as the line remains available on the mobile and on WhatsApp Web, without the need to delegate access or lose control.

Requirements to activate the API

Meta establishes certain conditions to enable the official integration. It is necessary for the number to be linked to the WhatsApp Business application, as it is not possible to connect personal lines. Additionally, the account must have some prior activity, as new lines with very little interaction may be rejected. There are also cases where some commercial portfolios are restricted and require additional review.

Conclusion

The connection via QR may be practical in initial stages, but it limits growth and access to advanced functionalities. In contrast, the official integration via WhatsApp Coexistence API offers a stable, secure, and scalable environment, allowing to make the most of the Prometheo platform and enhance advertising investment with integrations like Meta Ads.

Adopting the API not only ensures operational continuity but also opens the door to more sophisticated and measurable commercial strategies.