What Is an SDR?
Definition
An SDR (sales development representative) is a salesperson whose entire job is starting conversations: researching accounts, running outreach, qualifying interest, and booking meetings for an account executive to close.
The role exists so prospecting gets somebody’s full attention. An SDR does not close, price or demo in most teams, and that boundary is what stops cold work being traded away for a late-stage deal that feels more urgent.
What an SDR Does
One loop, run every working day.
- Research. Work out which accounts deserve a message and who inside them to write to. Strong SDRs spend real time here; weak ones skip it and wonder why reply rates are flat.
- Outreach. Email, phone, social and contact forms, as a sequence over two or three weeks rather than one attempt that gets buried.
- Qualification. When someone replies, find out quickly whether this is real. A clean no is a useful outcome; an unqualified meeting is not.
- Handoff. Book the meeting and brief the closer properly, with what was said and why now.
No negotiation, no pricing, no demos in most teams. That boundary protects the one activity nobody else in the company is doing.
SDR vs BDR vs Account Executive
Titles vary more than anyone admits. Here is the most common split, with the warning that plenty of teams do it differently.
| Role | Where leads come from | Owns | Judged on |
|---|---|---|---|
| SDR | Often inbound, people who raised a hand | Qualifying and booking | Meetings held, accepted pipeline |
| BDR | Often outbound, cold accounts | Research and first contact | Meetings held, new logos opened |
| Account executive | Handed over by SDR or BDR | Discovery through signature | Closed revenue, win rate |
| Account manager | Existing customers | Renewal and expansion | Retention, account growth |
If you are hiring or job hunting, ignore the letters and ask one question: am I contacting cold accounts, or following up with people who already asked?
SDR Benchmarks Worth Knowing
The Bridge Group has tracked sales development across hundreds of B2B companies for a decade, and its 2025 research report covers more than 350 of them.
| Measure | 2023 | 2025 | What it suggests |
|---|---|---|---|
| Average ramp | 3.2 months | 3.0 months | Fastest since 2010, onboarding has improved |
| Average tenure | 1.4 years | 1.9 years | Longest since the early 2010s |
| Quota attainment | About two thirds of reps | Most firms report 50% to 89% at quota | Quota setting remains uneven |
Treat these as context, not targets. Your deal size and sales cycle decide what good looks like, and a benchmark from another segment will mislead you.
The useful comparison is ramp against tenure. Three months to productive inside a stay of under two years means roughly a seventh of an SDR’s time with you is spent getting started, which is the real argument for investing in onboarding rather than hiring harder.
SDR Metrics That Matter
Activity metrics are inputs. Judging someone on inputs teaches them to produce inputs. Pay for dials and sends and you get dials and sends; pay for accepted pipeline and behaviour changes within a quarter.
| Metric | What it tells you | Use it as |
|---|---|---|
| Emails sent, calls made | Whether the work is happening | A diagnostic, never a target |
| Reply rate | Whether targeting and messaging land | First thing to fix when output drops |
| Meetings booked | Top-line output | Half a number on its own |
| Meetings held | Whether those bookings were real | Primary output metric |
| Accepted by sales | Whether the closer agreed it was qualified | Quality check on qualification |
| Pipeline created | Money attached to the work | What the quota should be built on |
Watch the gap between booked and held above all. A rep booking twenty meetings with eight showing up has a qualification problem, not a volume problem, and more outreach makes it worse. The usual cause is a soft ask: “would you be open to a quick chat?” wins agreement without commitment, and that does not survive a busy Tuesday.
SDR Outreach Sequence That Works
Four to six touches over two to three weeks, each with a different angle rather than a reminder that you wrote before.
| Touch | Day | Channel | Angle |
|---|---|---|---|
| 1 | 1 | Specific observation about their business | |
| 2 | 2 | Phone | Brief call referencing the email |
| 3 | 4 | Email, same thread | One concrete proof point |
| 4 | 8 | Email, new thread | Different pain, fresh subject line |
| 5 | 13 | Phone or social | Something useful, no ask attached |
| 6 | 20 | Clear close, offer to stop |
Touch one, the opener
Subject: [specific thing about their company]
Hi [name],
Saw that [verifiable observation: a job posting, a product launch, an integration they announced].
When teams do that, [specific consequence] usually turns into a problem about [timeframe] later. We handle that bit for [comparable company type].
Worth a look, or is this already covered?
Why it works: under ninety words, one checkable observation rather than flattery, and a question that is easy to answer with a no.
Bottom Line
An SDR exists so prospecting gets someone’s full attention instead of whatever is left after demos. Protect that split, measure meetings held and accepted pipeline rather than dials, and give a new hire a full quarter before drawing conclusions. That division of labour is what makes outbound sales repeatable at scale.
Then make the territory genuinely reachable. Good research and a sharp sequence still fail on accounts where nobody can find an address.
FAQs
1- What does SDR stand for?
Sales development representative. The role covers researching accounts, running outreach, qualifying replies, and booking meetings for an account executive, without closing deals.
2- What is the difference between an SDR and a BDR?
Most commonly SDRs handle inbound leads while BDRs prospect cold accounts, but the titles are not standard. Plenty of companies swap them or use one for both, so ask what the job actually involves.
3- Does an SDR close deals?
No. Closing belongs to the account executive. An SDR who starts negotiating is doing two jobs at once, and the prospecting is always what suffers.
4- How long does an SDR take to ramp?
Around three months on average across more than three hundred B2B companies, and longer for technical or enterprise sales. Recorded calls and a written account profile shorten it more than extra training sessions do.
5- How long do SDRs stay in the role?
Average tenure sits near two years, the longest since the early 2010s. Most move on to an account executive seat, team lead, or sales operations.
6- What is a realistic SDR quota?
It depends entirely on deal size and sales cycle, so your own historical numbers are the only useful benchmark. Build the quota on meetings held and pipeline accepted rather than call or email counts.