# How to solve lack of evidence in critical announcements | Vindula > Understand when to measure reading, when to ask for acknowledgment, and how to reduce risk in critical announcements without making everything mandatory. Source: https://vindula.ai/blog/como-resolver-falta-de-evidencia-em-comunicados-criticos Intranet # How to solve lack of evidence in critical announcements Understand when to measure reading, when to ask for acknowledgment, and how to reduce risk in critical announcements without making everything mandatory. Fabio Rizzo Specialist in employee experience, intranet, and artificial intelligence @fabiorizzomatos May 1, 2026 3 min read Lack of evidence in critical announcements is a pain that appears in audits, incidents, and internal disputes. The company says it communicated, but cannot show who received, read, acknowledged, or remained pending. Not every communication needs strong tracking. But some messages require control. ## The real pain The problem is not proving everything. The problem is not being able to prove what really matters. Common examples include changes in safety procedures, internal policy updates, mandatory guidance for a unit, legal or operational deadline announcements, conduct rules, and risk notices that require action. When this content is sent through channels with no evidence, the company loses visibility. ## Why it happens The most common cause is treating critical announcements like common announcements. The message goes by email, chat, or board, but there is no audience-level control. Another problem is exaggerating in the opposite direction. If the company asks for acknowledgment for everything, people confirm without attention and the metric loses strength. There is also a segmentation failure. Evidence must be linked to the correct audience. Measuring reading from people who were not targets distorts the result. ## How to solve it Create a communication classification. Separate informational, important, critical, and mandatory content. Define when to use simple reading. It may be enough for relevant notices that do not require formal agreement. Define when to use acknowledgment. Use acknowledgment when there is a policy, rule, procedure, or risk that justifies explicit confirmation. Segment the mandatory audience. If the rule applies to a factory, role, area, or unit, track exactly that group. Establish a follow-up routine. Evidence without follow-up becomes a static report. Someone needs to review pending items and notify responsible people. Keep history. For critical topics, date, version, audience, content, and reading status help reconstruct the process later. ## What to measure Useful indicators include reading by target audience, acknowledgment by area, unit, or role, pending items by period, time to completion, reopening after policy changes, questions after acknowledgment, and justified exceptions. These data help manage risk without overloading communication. ## Where Vindula fits Vindula supports [internal communication](/plataforma/comunicacao) and [corporate intranet](/plataforma/intranet) to publish critical messages, segment audiences, and track evidence when needed. To go deeper, see [internal critical alerts with priority, segmentation, and reading evidence](/blog/2026-01-16-alertas-criticos-internos-prioridade-segmentacao-evidencia-leitura) and [mandatory acknowledgment on the intranet](/blog/aceite-obrigatorio-intranet). Solving lack of evidence in critical announcements requires criteria. The company needs to measure what matters without turning every communication into bureaucracy. ### Fabio Rizzo Specialist in employee experience, intranet, and artificial intelligence Professional passionate about digital transformation and employee experience, committed to creating more engaging and productive work environments. @fabiorizzomatos Explore the platform ### Want to see this in practice? Discover how Vindula applies these concepts in day-to-day operations. Learn about the Intranet module ## Related Articles Intranet ### How to solve internal policies that nobody reads See how to turn internal policies into findable, understandable, and trackable content when acknowledgment is needed. Fabio Rizzo May 1, 2026 • 3 min read Intranet ### Segmented communication on the intranet: how to define audiences, rules, and evidence Learn how to structure segmented communication on the intranet by area, unit, role, and criticality to reduce noise and improve governance. Fabio Rizzo May 1, 2026 • 3 min read Intranet ### Mandatory acknowledgment on the intranet: when to use read confirmation and how to avoid overuse Understand when mandatory acknowledgment on the intranet makes sense, which content needs evidence, and how to govern the process. Fabio Rizzo May 1, 2026 • 3 min read View All Articles