The SDR seat exists because inbound demand is perishable. Minutes matter, routing matters, and the rep who answers first books the meeting. Everything else in the inbound funnel is downstream of that single discipline.
An SDR, or sales development rep, is the inbound-focused seller who qualifies marketing-generated leads before passing them to a closer. SDRs work the MQLs that come from form fills, demo requests, trial signups, and pricing-page visits. A typical SDR touches 25 to 50 MQLs per day across call, email, and chat. SDRs differ from BDRs, who prospect cold outbound, and from AEs, who close the booked meetings.
The six things to understand about the SDR role before you hire one, measure one, or hand one a lead list.
An SDR, or sales development rep, is the seller who works marketing-generated leads at the top of the funnel. The job is to respond fast to hand-raises, qualify fit and intent against the ideal customer profile, and pass qualified meetings to a closing rep. The SDR owns the first live conversation with a buyer who already signaled interest.
SDRs work marketing qualified leads: form fills, demo requests, pricing-page visits, content downloads, trial signups, and event scans. The buyer declared interest first. The SDR responds within minutes, qualifies the fit, and books a meeting while the intent signal is still warm. Cold outbound prospecting is a different seat, usually called a BDR.
A typical SDR touches 25 to 50 MQLs per working day across call, email, and chat. The number flexes with lead volume, segment, and cadence depth, but the shape holds. The job is high-tempo and high-focus. The SDR who sits on a lead for an hour watches conversion collapse, which is why the discipline centers on speed-to-lead.
SDRs are measured on time to first touch (minutes from form fill to first dial), MQL-to-SQL conversion rate, meetings booked per week, meeting-held rate, and eventual won-deal rate on passed meetings. Activity metrics (dials, emails, follow-ups) measure effort. Conversion metrics measure effectiveness. Both scorecards together keep the role honest.
Most teams split the role in two. SDR works inbound MQLs. BDR works outbound cold accounts. The job titles get used interchangeably in the market, but the playbooks are different. SDRs win on speed and routing. BDRs win on research and persistence. Confusing the two scorecards is a classic management mistake.
The SDR qualifies the opportunity and books the meeting. The AE, or account executive, runs the demo, builds the proposal, negotiates the terms, and closes the deal. The split frees AEs to spend their calendar on late-stage pipeline while the SDR team keeps the top of the funnel warm. In smaller teams, one rep wears both hats until volume justifies the split.
The SDR day is high-tempo and routine-driven. The shape barely changes week to week. Lead volume comes in through the CRM queue, the rep works the queue, meetings get booked, and the handoff lands with the AE. The discipline is less about creativity and more about executing the same five motions well, every day, for the length of the ramp.
Form fills and demo requests that landed overnight sit in the queue when the shift starts. The SDR works them first, in order, because the oldest lead is the coldest lead. A disciplined morning queue clears the overnight backlog inside the first hour, leaving the rest of the day for same-day hand-raises.
Through the day, new MQLs route into the SDR queue by segment, territory, or round-robin. The CRM surfaces the record with the trigger (form name, page visited, campaign source) and the recent intent signal. The rep opens the record, reads the context in seconds, and makes the first dial while the lead is still on the page.
The first call is short and surgical. Confirm identity. Confirm the trigger (which form, which page, what problem). Qualify fit against the ideal customer profile (company size, segment, role, budget signal). If fit holds, book the next step on the calendar. If not, disposition the record and move on.
Most first dials do not connect. The rep leaves a voicemail, fires a same-day follow-up email, queues a LinkedIn connect, and schedules the next touch. A disciplined inbound cadence runs five to seven touches across three to five business days. Most booked meetings land between touch two and touch five.
When the meeting is booked, the record passes to the AE with the research, the trigger event, the qualification notes, and anything the prospect said on the booking call. The AE joins the first demo informed. A clean handoff is the single biggest driver of meeting-held rate and no-show reduction.
The last hour is for queue hygiene. Disposition every open lead. Log every touch. Set the next action for tomorrow. The rep who closes out clean starts tomorrow fast. The rep who leaves records dirty starts tomorrow guessing, which is where conversion rates quietly erode over the quarter.
The vocabulary around sales development gets used loosely, and most buyers hear SDR, BDR, and AE and assume they are talking about the same role. They are not. The seats sit next to each other in the funnel, the playbooks are different, and the scorecards do not transfer. A team that confuses the three ends up under-staffing one motion and over-measuring another.
The SDR works marketing qualified leads: form fills, demo requests, trial signups, pricing-page visits. The buyer raised a hand first. The SDR responds fast, qualifies fit, and books a meeting. Measured on time to first touch, MQL-to-SQL conversion, meetings booked, and meeting-held rate against a steady pipeline of hand-raises.
The BDR, or business development rep, works cold outbound. No prior signal. The rep builds the list, researches the account, writes a personalized opener, and runs a multi-touch cadence to earn the first meeting. Measured on activity volume, cadence completion, meetings booked, and SQL conversion against a cold list.
The AE, or account executive, picks up the booked meeting and owns the deal from demo to close. Runs the discovery call, builds the proposal, negotiates the terms, manages the procurement cycle, and signs the contract. Measured on pipeline generated, pipeline progressed, win rate, deal size, and quota attainment.
SDRs hand booked meetings to AEs. BDRs hand booked meetings to AEs. AEs sometimes hand live deals back to AMs or CSMs after close. The clean version of the funnel is a chain of ownership, with the lead moving one direction and the context moving with it. The sloppy version is three reps all touching the same record with no clear owner.
SDRs and BDRs typically earn a base plus a variable tied to meetings booked or SQLs created. AEs earn a base plus a variable tied to closed revenue. The comp difference reflects the role: the SDR controls the top of the funnel, the AE controls the close. Mixing the two scorecards distorts behavior at both seats.
In most B2B SaaS teams, the SDR seat is the entry point to a closing career. Twelve to twenty-four months in the SDR chair, then a promotion to AE on a junior patch. The SDR year teaches product, buyer, and discovery skills. The BDR seat often sits parallel or converges with the SDR path depending on the org.
The SDR seat only scales when the CRM owns the mechanics. Routing, cadence, logging, and ranking the day used to be clerical work the rep did between calls. Modern CRMs run all of it in the background. The job of the SDR shifts from administrative to judgmental, which is exactly where a human on a phone with a buyer earns their keep.
Lead routing rules in the CRM assign every new MQL by segment, territory, or round-robin. Rules fire the moment the form submits. The record lands in the right queue, the rep gets a notification, and the clock starts. Fastest-rep-wins routing with SLA alerts keeps time to first touch inside the window where inbound conversion still works.
The record opens with the trigger pre-populated: which form the lead filled, which campaign brought them, which page they were on, which prior visits they logged, and any firmographic enrichment the system has pulled. The SDR reads a one-screen summary and makes the dial without hunting across tabs.
The inbound cadence (dial, voicemail, email, LinkedIn, follow-up, breakup) lives in the CRM as a workflow. Email steps send through the connected mailbox. Call steps queue the dialer. The cadence advances automatically unless the rep takes action, and the system pauses when a reply lands so no one keeps touching a prospect who already answered.
Every email open, click, reply, dial, voicemail, LinkedIn message, and booked meeting attaches to the contact and company record automatically. The timeline is complete, which means a manager coaching a rep can see the actual work, not the self-reported version. Comp calculations run off the logged activity, not a spreadsheet.
Strkr AI reads the queue (lead age, fit score, intent signal, cadence stage, prior-touch outcome) and ranks the next-best-action for the SDR: which record to work next, which cadence step to run, which reply to prioritize. The decision stays with the human. The clerical work of ranking the day disappears.
When the SDR books a meeting, the record passes to the AE with the full research, the cadence history, the qualification notes, and the booking-call summary attached. The AE joins the first demo with context the prospect can feel. No separate briefing doc. No slack ping. The CRM is the briefing.
Strkr owns the routing, the cadence, the activity trail, and the next-best-action in one tool. Pricing is published. Start free and work your next MQL this week.
SDR stands for sales development rep (or sales development representative). The role sits at the top of the sales funnel and is responsible for qualifying marketing-generated leads, booking meetings for closing reps, and keeping the inbound pipeline moving. The title is used across B2B SaaS, services, and inside-sales organizations.
SDR usually means inbound. BDR usually means outbound. The SDR works marketing qualified leads: form fills, demo requests, pricing-page visits. The BDR works cold outbound: builds the list, researches the account, runs a cadence against prospects with no prior signal. The job titles get used interchangeably in the market, but most mature teams split the two seats on purpose.
A typical SDR touches 25 to 50 MQLs per working day across call, email, and chat. The number flexes with lead volume, segment, and cadence depth. High-volume inbound teams push toward the upper end. Enterprise SDRs working heavier accounts sit at the lower end. The shape is high-tempo either way, which is why speed-to-lead and queue discipline define the role.
Published benchmarks vary by segment, but most B2B SaaS teams see MQL-to-SQL conversion in the 10 to 25 percent range. SMB and self-serve segments trend higher. Mid-market and enterprise trend lower because the qualification bar is higher. The more important number is the trend. A healthy SDR team drives the rate up quarter over quarter as cadence, routing, and intent signals get sharper.
Time to first touch is the number of minutes from the moment a lead submits a form to the moment an SDR makes the first contact attempt. It is the single biggest driver of inbound conversion. Public studies show conversion collapses after the first five to ten minutes. A disciplined SDR team runs time to first touch under five minutes during business hours, backed by routing rules and SLA alerts in the CRM.
The core SDR stack is a CRM, a dialer, a mailbox integration, a LinkedIn account, and a calendar scheduler. Modern CRMs collapse most of that into one surface: lead routing, cadences, call logging, email sync, LinkedIn tracking, and meeting booking all live on the record. A fragmented stack with five separate tools is a drag on time to first touch, which is why consolidated platforms win the inbound seat.
SDRs usually earn a base salary plus a variable component tied to meetings booked, SQLs created, or meetings held. Some teams add a kicker on eventual won revenue from passed meetings. The variable is designed to reward the behaviors the role controls (speed, qualification, meeting quality) without punishing the rep for things they do not control (whether the AE closes the deal).
AI changes the clerical layer of the role, not the human layer. It drafts first-pass personalization from the research, ranks the daily queue by next-best-action, surfaces intent signals the rep would have missed, and auto-logs activity so nothing gets forgotten. The judgment of what to say on a live call, how to qualify a borderline fit, and when to break pattern still belongs to the human. The AI gives the SDR a sharper starting point and a cleaner record.
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