Your background check provider just called a previous employer to verify a candidate.
The phone rang. An automated voice asked for dates of employment and job title. The employer hung up. And now it's your problem.
This happens constantly. Most people don't stay on the line for robocalls, and HR departments are no different. When an automated system calls to verify employment, the person answering often assumes it's spam, a sales call, or something else they don't have time for. They hang up, and the verification attempt fails.
What happens next depends on your screening provider. And this is where most of them fall short.
Why three attempts isn't a verification strategy
Many background check companies follow a standard process: make three automated call attempts, leave voicemails, and wait for a callback. If nobody responds after three tries, the verification is marked "unable to verify" and the report goes back with a gap.
That gap now becomes your problem. You either accept the incomplete report and move forward without full verification, or your HR team picks up the phone and does the work themselves. For companies paying a screening provider to handle this, doing the verification yourself defeats the purpose.
The "three attempts and done" approach exists because it's efficient for the provider, not because it's effective for you.
The 35-65 rule most providers don't mention
Here's the data point the industry keeps quiet. Analysis of consumer reporting agencies (CRAs) and their verification workflows shows that only about 35% of employment verification orders can be resolved by automated tools. The other 65% require human outreach.
The labor imbalance is striking. Despite handling only 35% of volume, the automated portion uses almost none of a CRA's verification labor. Roughly 97% of that labor goes into the manual 65%, because talking to human beings is harder than pinging a database.
If your provider treats automation as the primary tool and doesn't have a robust human fallback, most of your verifications are structurally at risk.
Why automated verification fails
Employment verification has a fundamental people problem. The information you need sits with another human being, usually someone in an HR department or a small business owner with a dozen other things to do.
Caller ID screening. Most businesses screen unfamiliar numbers. An automated call from an unknown number looks exactly like a robocall, because it is one.
No rapport, no cooperation. Verification requires the other party to look up records and share information. People do that for other people, not for machines.
Voicemail doesn't get returned. Automated voicemails asking someone to call back a screening company fall to the bottom of every priority list.
Small businesses don't have HR departments. For candidates who worked at smaller companies, one person may hold the relevant records, and that person isn't sitting by the phone.
Privacy policies and third-party vendors. Large employers route verification through third-party vendors that refuse phone inquiries or limit disclosures to dates and title only. A human can adapt. A dialer can't.
Candidates know the gap exists
Misrepresentation is not rare. It concentrates in exactly the places verification is weakest.
A ResumeLab 2023 survey of 1,914 US workers found that 70% admit to lying on their resume, with 37% admitting they lie frequently. More than a third overstate how long they worked at previous jobs. That's the exact detail a lazy automated workflow misses.
How KRESS gets to verified
KRESS handles employment verification differently. Instead of automated calling systems, KRESS uses US-based team members who make real phone calls to verify employment history.
That difference, a real person on the phone, is what separates a completed verification from a gap in your report.
When a real person calls a previous employer, the conversation starts with context: who they are, which candidate they're verifying, and what specific information they need. The person on the other end can ask questions, clarify details, and provide the information in a single call.
When a call doesn't connect on the first try, KRESS team members follow up. Not three times. They keep working the verification, calling at different times, trying different contacts within the organization, and using email and fax when phone doesn't work. The goal is a completed verification, not a "we tried" report.
KRESS automates what should be automated and keeps human judgment where it matters most.
"Verification isn't a data problem, it's a people problem. When our team picks up the phone, we're not running a script, we're having a real conversation with someone at a former employer, and we keep going until we get a real answer. That's what 'verified' is supposed to mean."
Constance Brackett, Chief of Staff, KRESS
What gets verified
A standard KRESS employment verification confirms:
Dates of employment. When the candidate started and left. Catches gaps and overlaps.
Job title. Whether the candidate held the role they claimed. Title inflation is one of the most common forms of resume fraud.
Eligibility for rehire. Whether the previous employer would hire the candidate again. Signals performance issues that don't appear in a criminal background check.
Reason for leaving. When available, context about whether the departure was voluntary or involuntary.
For companies that need deeper verification, KRESS's ResumeMatch technology cross-references resume claims against primary source data, flagging discrepancies between what the candidate submitted and what verification confirms.
When the verification fee gets expensive
There is a specific version of "unverifiable" that isn't about effort. It's about cost.
A growing number of former employers, and many universities, have outsourced verification to paid third-party platforms charging between $60 and $140 or more per check. Some clients see those fees stack and quietly start cutting corners.
DocuProof is built for that situation. The candidate receives a secure link and uploads proof directly: employment documentation, diplomas, transcripts. KRESS verifies authenticity and returns a full report, usually within 24 to 48 hours.
Clients typically save 70 to 85% on those verifications versus third-party fees. Across roughly 3,000 DocuProof verifications last year, KRESS clients saved more than $300,000 in fees. DocuProof sits alongside human-led outreach, not instead of it, so cost is never the reason a candidate's history goes unchecked.
The cost of incomplete verification
When verification comes back incomplete, the risk doesn't disappear. It transfers to you.
A candidate who claims five years of management experience but actually held an entry-level role for two years brings a very different skill set than expected. A candidate who was terminated for cause but reported it as a voluntary departure presents a different risk profile than the one on paper.
The U.S. Department of Labor estimates the average cost of a bad hire at 30% or more of first-year earnings. When that hire goes wrong and has to be replaced, SHRM puts replacement cost at 50 to 200% of annual salary, depending on level.
Incomplete verification also creates downstream liability. If an employee causes harm and it later emerges that the background check had gaps the employer could have filled, that gap becomes a negligent hiring argument.
A quick word on FCRA
Under the Fair Credit Reporting Act, CRAs are required to follow "reasonable procedures to assure maximum possible accuracy" of the information in consumer reports (15 U.S.C. § 1681e(b)).
An "unverifiable" result from three unanswered automated calls, no human escalation, no alternate contact attempt, no meaningful documentation, is harder to defend under that standard than an "unverifiable" backed by a documented human outreach effort. The first is a thin stamp. The second is a record.
Four questions to ask your provider
- How do you contact previous employers? If "automated calling," ask what happens when the automated call fails.
- How many attempts do you make? If three, ask what happens after the third fails. "Unable to verify" isn't an answer, it's an admission that they stopped.
- Who is making the calls? If "our system," the calls are automated. Real people get better results.
- What's the escalation path when an employer doesn't respond on the first attempt?
Stop accepting "unable to verify"
KRESS uses US-based team members for every employment verification. No robocalls. No three-attempt limits. Real conversations that get real answers.
If you're tired of "unable to verify" landing in your reports, see what verification looks like when a real person owns the call. We'll walk you through how KRESS works and show you where your current process is leaking.