Short answer
An SDR playbook is the written operating manual for a sales development team. It defines who to target and why now, the messages and cadences reps use, what counts as a qualified meeting and how it's handed to an account executive, the metrics each rep is measured on, and how SDRs are hired and ramped. Keep it short, tie every section to a number you track, and update it each quarter from call reviews and conversion data.
- A playbook has nine parts: targets, triggers, messaging, cadences, qualification, handoff, metrics, hiring and ramp, and the rules reps must follow.
- The Bridge Group's 2025 medians: 3.0 months to ramp, 40% annual attrition and 6.4 SDRs per leader, so plan to hire all year.
- Plan capacity on accepted meetings, not activity, and add seats for the output lost to vacancies and ramp.
- Cadences have legal and deliverability limits: CAN-SPAM covers B2B email, and Gmail wants spam complaints below 0.3%.
- Review three calls per rep each week and change one part of the playbook at a time.
On this page
This playbook is for SDR managers, sales development leaders and founders building a first outbound team. It covers what goes in the playbook, team design, hiring and ramp, cadences that stay within the rules, metrics and how many SDRs you need. For what the job looks like from the rep's side (the daily schedule, one rep's quota math and pay), see the sales development representative guide.
What an SDR playbook contains
| Section | What it answers | Updated |
|---|---|---|
| Ideal customer and target accounts | Which companies, and how many per rep | Quarterly |
| Personas and triggers | Who to contact and what makes now the right time | Quarterly |
| Messaging | The problem you lead with for each persona, with proof | Monthly, from replies |
| Cadences | Which channels, how many touches, over how long | Monthly, from conversion |
| Qualification | What an SDR must confirm before booking | When AEs reject meetings |
| Handoff | What the account executive (AE) receives and when | As needed |
| Metrics and targets | What each rep is measured and paid on | Each pay period |
| Hiring and ramp | Who you hire and what they learn in which week | Each hiring wave |
| Rules | Email, calling and data rules every rep follows | When the rules change |
1. Who we sell to: ideal customer profile, account tiers, accounts per rep 2. Who we contact: personas, their problems in their words, titles to search 3. Why now: the five triggers that make an account worth contacting this month 4. What we say: one core message per persona, three proof points, top objections 5. How we reach them: cadences by tier and persona (channels, touches, days) 6. What counts as a meeting: the qualification bar and who decides 7. How we hand off: handoff note, timing, AE feedback within 48 hours 8. How we measure: metrics, definitions, targets, where each is reported 9. How we hire and ramp: scorecard, interview exercise, 12-week plan 10. The rules: email, calling, data and tool use, and who to ask Owner: [name] | Last reviewed: [date] | Next review: [date]
Design the team before you hire it
The Bridge Group's 2025 survey of 351 B2B companies, mostly software firms, gives these structural benchmarks:
| Decision | 2025 benchmark |
|---|---|
| SDRs per AE | 1 SDR to 2.4 AEs, consistent since 2018 |
| Aligned to AE territories | 82% of companies, up from 56% in 2018 |
| SDRs per first-line leader | 6.4, from 3.6 at companies under $5M revenue to 8.1 at $500M and up |
| Reporting line | 60% to sales, 26% to marketing, 10% to another executive |
| Average ramp | 3.0 months |
| Annual attrition | 40% median, 21% to 57% between the 25th and 75th percentiles |
Aligning SDRs to AE territories is the default for a reason: the AE knows the accounts, gives faster feedback and has a stake in the SDR's success. Decide early whether SDRs work inbound, outbound or both, because the quota model follows from it. The survey's median monthly quota was 16 meetings where SDRs only make introductions, 10.4 where meetings are semi-qualified and 9.0 where they're fully qualified.
Hire for the job you've written
With 40% attrition, a team of ten loses about four people a year before it grows at all. Hiring is a permanent part of the manager's job, so make it consistent.
WRITING: work-sample email to a real account is short, specific and correct RESEARCH: found a relevant, dated reason to contact the account CALL: 5-minute role play; asked questions, handled one objection, asked for a meeting COACHABILITY: took feedback in the role play and used it on the second attempt RESILIENCE: specific example of keeping going after repeated rejection ORGANIZATION: explained how they manage many tasks with deadlines Hire at 18 or more, with no score below 2 on writing or coachability. Work sample: "Here's a company and a persona. You have 30 minutes. Find one reason to contact them now and write the first email."
Use the same account for every candidate so you can compare answers side by side.
A 12-week ramp plan
The 2025 median ramp was 3.0 months, so plan for twelve weeks with a measurable target in each block:
| Weeks | Focus | Target by the end |
|---|---|---|
| 1 to 2 | Product, ideal customer, personas, tools; listen to 20 recorded calls | Passes a messaging test; CRM set up |
| 3 to 4 | Research and email first, then live calls with a manager listening | 50 accounts researched; first conversations held |
| 5 to 8 | Full cadences on a reduced account list; daily call review | 50% of the meeting target |
| 9 to 12 | Full account list and target; weekly reviews | 100% of the meeting target in week 12 |
Pair every new SDR with a tenured peer for the first month, and give them their AE's feedback on every meeting they book.
Cadences that stay within the rules
Day 1: Email 1 (trigger plus one question) and a call Day 3: Call, voicemail referencing the email Day 5: Email 2 (a short proof point from a similar company) Day 7: LinkedIn connection request, no pitch Day 9: Call; if no answer, Email 3 (a different problem or angle) Day 12: Call Day 14: Email 4 (close the loop politely; offer to reconnect next quarter) Stop immediately on a reply, a meeting or an opt-out.
Build these limits into the playbook and your sequencing tool:
| Rule | What it means for SDRs | Source |
|---|---|---|
| CAN-SPAM Act | No exception for B2B email: accurate headers and subject lines, a postal address, a way to opt out, and opt-outs honored within 10 business days. Penalties reach $53,088 per email. | FTC |
| Gmail sender guidelines | Keep spam rates reported in Postmaster Tools below 0.3%. Above 5,000 messages a day to Gmail, authenticate with SPF, DKIM and DMARC and support one-click unsubscribe on marketing messages. | |
| FCC telemarketing rule | Telemarketing calls to mobile numbers using an autodialer or a prerecorded voice need prior express written consent. Live calls dialed by a rep are treated differently. | 47 CFR 64.1200 |
Keep each SDR's volume where they can personalize the first line of every email. The sales cadence guide covers the trade-offs between touches, channels and spacing.
Run the team on these metrics
| Metric | Formula | Use it to |
|---|---|---|
| Meetings held | First meetings that took place | Track the core output |
| Acceptance rate | Meetings the AE accepted ÷ meetings held | Check quality; falling acceptance means the bar slipped |
| Conversation-to-meeting rate | Meetings booked ÷ quality conversations | Judge messaging and call skill |
| Pipeline sourced | Value of accepted opportunities | Tie SDR work to revenue |
| Pipeline to closed | Closed-won value ÷ pipeline sourced, by rep | See whose meetings really close |
| Reps at quota | Ramped SDRs at 100% or more ÷ ramped SDRs | Test whether the quota is fair |
In 2025, 60% of SDRs reached quota, the lowest in the study's history, and the median pipeline per SDR was $3.78M a year. Pay on accepted meetings, not booked ones, and review acceptance with the AEs every week.
Worked example: how many SDRs do you need?
Illustrative example. The company and numbers are invented to show the arithmetic.
Fieldnote (fieldnote.example), a SaaS company, wants its SDR team to deliver 60 accepted opportunities a month to its AEs by the third quarter. It has eight SDRs today.
- Output per ramped SDR. The quota is 6 accepted a month, but not everyone hits it, so plan on 5. That's 60 ÷ 5 = 12 ramped SDRs.
- Output lost to attrition. At 40% a year, 12 seats produce 4.8 leavers a year. Each costs about 6 weeks of vacancy (1.5 × 5 = 7.5 opportunities) and 3 months at half output while the replacement ramps (3 × 2.5 = 7.5), so 15 opportunities per leaver and 4.8 × 15 = 72 a year, or 6 a month.
- Seats to plan. 6 a month is 1.2 more SDRs, so 13.2 seats, rounded up to 14.
- Leaders. At 6.4 SDRs per leader, 14 SDRs need two managers.
- Hires this year. 6 to grow from 8 to 14, plus about 4.4 replacements (an average of 11 SDRs × 40%): about 10 to 11 hires, close to one a month.
The answer isn't "hire six". It's "keep a hiring pipeline open all year, and budget for 14 seats and a second manager". To keep each new SDR's list full of accounts worth contacting, Bebop builds account lists from a plain-language description and writes a playbook for each account.
Keep the playbook alive
| Rhythm | What happens |
|---|---|
| Weekly | Three recorded calls reviewed per rep; acceptance reviewed with AEs |
| Monthly | Reply and conversion rates by message and cadence; retire the weakest |
| Quarterly | Ideal customer, triggers and quotas reviewed; playbook reissued with a changelog |
Change one thing at a time and give it enough volume to judge, or you won't know what caused the change.
Common mistakes
- Measuring activity instead of acceptance. Reps optimize what you count.
- Hiring in bursts. Five new SDRs at once swamp the manager and ramp slowly.
- One cadence for every persona. A CFO and an operations manager need different messages and timing.
Self-check
- Every rep can state the ideal customer and the top three triggers without looking.
- The meeting bar is written down and the AEs agree with it.
- Your sequencing tool enforces opt-outs and sending limits automatically.
- You know each rep's acceptance rate and pipeline-to-closed rate, not just activity.
- You have a hiring pipeline open even when every seat is filled.
Next step: share the sales development representative guide with new hires in week one, so they see the job and the numbers before they start dialing.
Sources
- SDR Models, Motions & Metrics: 2025 Research Report (10th edition), The Bridge Group, 6 February 2025
- CAN-SPAM Act: A Compliance Guide for Business, Federal Trade Commission, accessed 26 October 2026
- Email sender guidelines, Google Workspace Admin Help, accessed 26 October 2026
- 47 CFR 64.1200, Delivery restrictions, Electronic Code of Federal Regulations, accessed 26 October 2026
Written by the Bebop team at Blackpearl Group. Last updated .
Questions people ask
What is an SDR playbook?
An SDR playbook is the written operating manual for a sales development team. It sets out the ideal customer and target accounts, the personas and triggers to look for, messaging and cadences, the qualification bar for a meeting, how meetings are handed to account executives, the metrics reps are measured on, and how SDRs are hired and ramped. Good playbooks are short and updated every quarter.
What should be included in a sales development playbook?
Nine parts: who you sell to, who you contact, why now (triggers), what you say, the cadences you use, what counts as a qualified meeting, how you hand off to account executives, how you measure reps, and how you hire and ramp them. Add a section on the rules for email, calling and data use. Give each section an owner and a review date.
How long does it take to ramp an SDR?
The Bridge Group's 2025 survey of 351 B2B companies found an average ramp time of 3.0 months, the lowest since 2010. Plan a 12-week onboarding with targets in each block: product and messaging in weeks one and two, research and first calls in weeks three and four, half the meeting target by week eight and the full target by week twelve.
How many SDRs should one manager lead?
The Bridge Group's 2025 median was 6.4 SDRs per first-line leader, down from 8 in 2021 to 2023. The ratio rose with company size, from 3.6 at companies under $5M in revenue to 8.1 at $500M and up. Smaller spans give managers time for daily call coaching, which matters most when many reps are still ramping.
What metrics should an SDR team track?
Track meetings held, the share of meetings account executives accept, show rate, conversation-to-meeting rate, pipeline sourced and how much of that pipeline closes, by rep. Activity counts such as dials and emails are useful for diagnosis but shouldn't be the target. Paying on accepted meetings, rather than booked ones, keeps the quality bar where the AEs need it.