ATS Migration for Recruitment Firms: What Moves Cleanly, What Gets Lost, and How to Protect Your Context

The useful part

Recruiterflow Skip to the content Contents CONTENTS Share it with the world! Two hundred thousand candidates, forty thousand companies, a number per thousand. That layer is the first thing a migration loses, and the loss does not show up on any checklist.

How it works

• Email and call history frequently does not move at all Most migrations do not carry the communication record, because it lives in an integration rather than in the database.
• The loss surfaces three months later, when a recruiter searches for someone they remember placing, finds the record, and cannot work out what happened.
• What matters is whether your custom fields arrive as fields you can filter and report on, or as text appended to a note.
• Not whether the old system stays available, but for how long, in what state, and who pays for it.
• Run a database audit and find out what proportion of records have a reliable current employer, current title, and owner.

What to take from it

Why the loss stays invisible Nobody notices on day one, because day one is spent checking that candidates and jobs are there. Decide explicitly whether the vendor is doing it, you are doing it, or nobody is, because "nobody" is the default answer. Long parallel runs sound safer and are not, because data starts accumulating in two places.

Example or evidence

• Bring that sample to a demo and we will show you what the same records look like when the search reads the notes as well as the fields.
• Ask to see a sample migration including notes and call logs, how custom fields map and whether they remain reportable, who is responsible for data cleanup, and what rollback looks like in practice including...
• What actually moves Structured fields move cleanly Names, emails, phone numbers, job titles, company records, application dates, stage history.
• These live in defined fields with defined types, and every vendor can map them.

Details worth keeping

All Blogs / ATS Migration for Recruitment Firms: What You Lose) ATS Migration for Recruitment Firms: The records are not what makes your database valuable.

Related coverage

• Recruiterflow: The thing that keeps most firms on software they have outgrown is not price.
• Recruiterflow: Most firms stay on a broken ATS years longer than they should, because switching feels expensive.
• Recruiterflow: Every firm considering a new system builds a careful model of what moving will cost.
• Recruiterflow: Most firms know whether their recruiters like the system.