
I was the Senior Product Designer responsible for creating and governing the strategy of the communication spaces in the Itaú app: defining the purpose of each space and its specific content and visual rules. I also took part in ideation, workshops and the handoff to development.
In the Itaú app, only 1% of users genuinely engaged with campaigns spread across 22 communication spaces. Customers reported too much irrelevant advertising and ignored what they saw.
As Product Designer, I redefined the purpose and the content and visual rules of every space and format, through workshops with business, product, data and design teams and a research study of 15 user interviews run with UX Research.
I created 15 usage guides, redesigned the existing formats and created seven new ones, validated in three user tests and four 90-day A/B tests. Once everything was validated, I trained the business, creative and operations teams.
The project data is confidential and I did not follow the results in numbers, so the outcome I present is qualitative: what the tests showed, and the drop, over the course of the interviews, in complaints about excess advertising.
The Digital Communication team of the Itaú app was responsible for running product and service campaigns in dedicated spaces inside the app, from the Home, through Hubs, to task completion pages.
Data from the existing campaigns showed that only 1% of users had real engagement: this small share clicked, interacted with the tasks or offers and completed the purchase or contract.
We had already created rules for using these spaces, but the operations and creative teams still applied them poorly. The Sales Rooms, the teams responsible for creating and publishing communications for each specific product, produced conversations that, according to the data, were both excessive and not relevant to customers.
Because the spaces were filled with irrelevant and repetitive messages, they became “invisible” to users. In the end, the campaigns that really mattered were ignored by people who had grown used to advertising blindness inside these spaces.
To run campaigns in the app we had eight communication formats, that is, eight components available for distribution.
The places where these formats could be placed across the app added up to 22 spaces.


Components as-is
How might we improve the engagement and effectiveness of communications with design and content strategies?
Together with my Content Design partner, I analyzed attractiveness and success data for 100 campaigns published across the 22 spaces. From that we understood that part of the problem could be the campaign content or the format used for each one.
I also reviewed the existing purposes and rules of each space and format, evaluating which formats existed, what they were used for, when they were used, and whether they still needed to exist in some scenarios.
Each space and format had its own usage rules, but the guides were often not updated by the previous team and, as a result, were not consulted by the creative team, which created noise in the campaigns.
I talked to around ten stakeholders and directors to understand the strategic view and the opportunities. We also understood we needed the customer’s view on the bank’s ways of communicating inside the app.
For that, I commissioned a study with Itaú’s UX Research team. With a researcher, I co-created the script and the research strategy. We considered focus groups, but decided on individual interviews, since groups could introduce bias between participants. Together with UX Research, I followed 15 user interviews.
The interviews confirmed the low-relevance hypothesis:

Again in partnership with UX Research, we ran three user tests to arrive at the best versions of the formats, and four A/B tests in production, each with 90 days of data collection: format, color, motion design and content.
The real data cannot be disclosed, so I describe what the tests showed and what we decided from them:
Some requests from other teams were vetoed in favor of standardization and harmony across the app, so that no components stood out from the rest.
Itaú is a more sophisticated bank, even with low and middle-income audiences, and that is reflected in the app and its communications. That is why we also defined, in the purposes, that the most attention-grabbing formats stay at the top of the Home, considered the prime area, and are intended for tasks the customer needs to fulfill, useful and/or urgent information, and recovery or debtor scenarios, not for selling products and services.

The guides were first built as a navigable prototype and later migrated to SharePoint. The visual handoff of the evolutions and new formats was always done through Figma, with details aligned in refinement with the team.
After the purposes were defined and the guides ready, we trained the business, creative and operations teams to reinforce and update people on the purposes and the new formats: one in-person session with around 200 participants, and three online sessions with around 100 each.
Because so many teams were involved, there were blockers with other owners that delayed the project. The conflict between experience rules and business rules was constant, since besides the communications there were product-specific parameters. And, as happens in large companies, projects were born and died often, which affected the team’s queue.
The real data from this project is not disclosed, and I did not follow the results in numbers. The only number is the starting point: 1% of users had real engagement with campaigns, meaning people who clicked and then contracted or completed the proposed task.
What I have is qualitative: the results of the tests described above, and the perception, in interviews over time, that excess advertising stopped being a frequent complaint among customers.