Records needed for this question
Original downloads, retrieval dates, reviewer notes and document versions.
How to investigate
Keep original carrier records immutable and attach corrections as later evidence.
An illustrative review decision
If a reviewer annotates an invoice, keep the unmodified source alongside the working copy. Record the received date and source channel so later questions can distinguish supplier evidence from internal analysis.
What can lead to the wrong conclusion?
Replacing an old invoice can erase the basis for an earlier reviewer decision.
The result to retain
A versioned case evidence index.
Apply the review in context
Review carrier invoice evidence, inventory, findings and recovery cases in AuditRes Telecom.
This guide describes a human review method, not a claim that every scenario is automatically detected or executed. Explore AuditRes Telecom.