> ## Documentation Index
> Fetch the complete documentation index at: https://docs.elevatedsignals.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Complaints

> Capture, classify, investigate, and close product complaints with a controlled taxonomy.

Complaint records capture product complaints from initial intake through investigation and closure,
with a controlled taxonomy for consistent trending and a linked CAPA where corrective action is
required.

## Complaint Register

All complaints are listed with their type and subtype, product/lot, site, severity, status, and the
date received. Filter and review the register regularly so open complaints are investigated and closed
in a timely way.

## Controlled Taxonomy

Complaints are classified against a controlled, two-level taxonomy (type → subtype) that your
organization manages on the **Complaints → Taxonomy** page. Using a controlled taxonomy — rather than
free text — is what makes complaint trends consistent and reportable over time.

## Complaint Detail

The detail page captures the complaint source channel, product/lot and site, complainant information,
severity, taxonomy classification, current status, a linked CAPA where follow-up action is needed, and
a resolution summary on closure. Link a complaint to a CAPA when corrective or preventive action is
required so the follow-through is tracked to completion.

## Lifecycle & Audit

Complaints move through a structured lifecycle to closure, and every create and state change is written
to the tamper-evident audit trail automatically — giving you an attributable record of who did what and
when.

<Note>
  This page describes what is built today. Complaint intake, controlled taxonomy, complaint-to-CAPA
  linkage, and severity/status tracking to closure are available where Complaints is enabled and your role permits them.
</Note>

For the end-to-end procedure, see [Log a complaint](/invariant/how-to/log-a-complaint).

## Link records and recover from an action error

When Complaints is enabled and your role permits the action, open **Link disposition** (or
**Raise required CAPA** when prompted). Select **Attach existing records**, then choose the deviation
or CAPA by its number and title. The pickers use records from your organization and exclude records
already linked to that complaint. You do not need to paste an internal record ID.

**Start investigation** is disabled while its request is in progress. A refusal appears with the
action that failed; it is not carried into an unrelated dialog. Read the message, confirm the current
record state, and correct the cause before retrying. These controls do not bypass the existing
complaint, role, signature, or closure requirements.

Email/web intake and automatic complaint triage remain outside this manual workflow.