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User Guide: Bank-Connected Systems
Connect, check and trust your numbers
This book is 100% completeLast updated on 2026-10-27
How to connect, check and trust the numbers that come from your bank into a business or investment system (Open Finance, boleto, Pix, reconciliation).
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About
About the Book
A system connected to your bank saves typing, but a number from the bank is a source, not the truth. This guide explains how to use one safely, with two real examples: the finance module of a business management system (boleto, Pix, reconciliation) and an investment portfolio system that reads positions through Open Finance. Inside: what these systems do and do not do, connecting the account the first time, the routine, the four honest statuses (ok, no items, degraded, error), what happens when consent expires, reconciling against another source (including the asset quoted in dollars that was summed as reais), boleto and Pix automatic settlement, common problems, and a weekly checklist. Written for business owners and investors in Brazil. 6 pages, PDF.
Author
About the Author
Leandro Salerno
Leandro Salerno leads marketing and technology at Austhen, a Brazilian industrial audio group with 20+ years of engineering, behind the brands Sansara, IBS and Xcene.
He didn't learn AEO from a course — he learned it shipping real sites: building and optimizing the group's B2B catalogs in Next.js and Firebase, and fighting every indexation and schema bug documented in this book. After getting those sites cited by ChatGPT and Perplexity, he packaged the method into AEO in Practice.
He writes for developers and agencies who want to master the next layer of search before the competition does.
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