SDR targeting is deciding which accounts and people a sales development rep works, and in what order. Lead quality is how likely a lead is to become a qualified opportunity, judged on four things: fit, intent, timing and access. Conversion is the share of leads that move from first touch to meeting to qualified opportunity. The integrations that matter are the ones that put all four quality signals on the same CRM record before the rep reaches out, then write the outcome back.
This guide covers how SDR teams pick targets, how to define and measure lead quality, where conversion leaks at each step, and the integrations worth paying for.
What does a sales development representative do?
A sales development representative (SDR) finds and qualifies new pipeline for account executives. SDRs research target accounts, reach the right people through email, phone, LinkedIn and introductions, book first meetings, and qualify whether there is a real evaluation before handing the opportunity to an AE. Some teams split the role: SDRs handle inbound leads and BDRs handle outbound. The work is the same either way: turn a list of names into qualified opportunities.
How SDR teams decide who to target
Good targeting works in layers, from the account down to the moment.
- Account fit. Start with your ideal customer profile: industry, size, region, tech stack and the problem you solve. Build it from closed-won deals, not from the market you wish you had.
- Account tier. Rank fit accounts so the best ones get research and multiple channels, and the long tail gets lighter touches.
- The right people. Map the buying committee: the economic buyer, the champion who feels the problem, and the people who can block the deal. A lead is a person, so the same account can hold a great lead and a poor one.
- Timing. Prioritise accounts where something just changed: a new executive, a funding round, a hiring push, a former champion arriving, or a pricing page visit.
- Access. Check whether anyone on your side already knows someone at the account. An account where your CEO, an investor or a customer champion has a real relationship is a different target from one where you have nobody.
Most teams do the first four well. The fifth is the one that is usually missing from the list, because relationship data rarely lives in the CRM.
Lead quality signals: what to look for
Lead quality is not one score. It is a few signals that each answer a different question. This is how they compare:
| Signal | Question it answers | Where it comes from |
|---|---|---|
| ICP fit | Could this account buy and succeed? | Firmographic and technographic data, CRM history |
| Persona | Is this person in the buying committee? | Title, function, seniority, org charts |
| First-party intent | Are they looking at us right now? | Website visits, pricing page views, demo requests, product usage |
| Third-party intent | Are they researching the category? | Intent data providers, review sites |
| Trigger events | Why would they act now? | Job changes, new executives, funding, hiring, expansions |
| Champion history | Has this person bought or used us before? | Former customers and users who changed jobs |
| Access | Who on our side can get us in, and how well do they know them? | Relationship graph across executives, employees, investors, advisors, customers and partners |
| Engagement | Are they responding? | Replies, meetings held, calls connected |
Fit and persona tell you whether a lead is worth working. Intent and triggers tell you when. Access tells you how. A lead with all four is the one to work first.
How to measure SDR lead quality
Measure rates, not volume. Volume metrics such as dials, emails sent and meetings booked reward activity, and outbound always wins on activity. Rates tell you which leads are actually good.
- Reply rate: the share of contacted leads who respond.
- Meeting rate: the share of contacted leads who take a first meeting.
- Qualification rate: the share of meetings that become a qualified opportunity, where the AE confirms a real evaluation.
- Close rate: the share of meetings that end as closed-won.
Then split every rate by lead source: outbound, inbound, events and nearbound (any lead that started with a relationship). Use a fixed window of closed opportunities so fast and slow deals are judged the same way. The step by step version is in our guide to checking whether nearbound is your best pipeline source.
Two fields make this possible: a lead source value for nearbound, and a field that records the path (who made the connection, and how). Without them, relationship-led pipeline gets logged as outbound or referral and disappears from the comparison.
Where SDR conversion leaks, and how to fix each step
Lead to reply
Leads ignore messages that are irrelevant, badly timed or from a stranger. Fix the first two with fit and trigger signals. Fix the third by sending fewer messages from the rep and more from someone the buyer already knows, when that path exists.
Reply to meeting
Interested replies stall when the ask is vague or the meeting is with the wrong person. Make the ask specific, offer a short first meeting, and confirm the persona before booking.
Meeting to qualified opportunity
Meetings fail to qualify when only one person is involved or the AE starts from zero. Multithread early, and hand off with context: the signal that triggered the outreach, the people mapped, and any relationship paths into the buying committee.
Where warm paths change SDR conversion
Warm paths change the lead to reply step most. An introduction from someone the buyer trusts arrives with credibility a cold message cannot borrow, and it usually reaches a more senior person.
Two Boomerang AI customers show what that looks like in their own numbers:
- 1mind compared lead sources over 120 days of closed opportunities. Nearbound closed at 3x the rate of outbound and qualified 2.5x as often. 1mind runs 15 AEs and no SDRs, with every AE working warm paths from one system. Read the 1mind story.
- Storylane works former users and buyers who changed jobs through its BDR team. It saw a 12% reply rate on Boomerang job-change leads and more than 20 opportunities through the BDR team. Read the Storylane story.
Your numbers will differ, which is why the measurement step above matters. Run the comparison on your own pipeline before you change how SDRs spend their week.
In practice, warm paths fit into the SDR workflow in four steps:
- Find the path. For each target account, see who on your side knows someone in the buying committee: executives and employees, investors and advisors, customer champions and partners, scored by how strong the relationship is.
- Route the ask. Send the ask through the person who makes the next yes easy. Big favours, such as a board member intro, are saved for the deals that justify them.
- Let the connector send it. The connector sends a drafted note from their own account, so the buyer hears from someone they know.
- Chase and log. Follow up when a connector goes quiet, and write every step back to the account, contact and opportunity so the lead source is recorded as nearbound.
Former champions are the easiest warm path an SDR has. When a happy user or buyer joins a target account, they already know the product and the team. See how to engage champions on the move.
The SDR integrations that matter
An SDR stack has one job: get fit, intent, timing and access onto the record the rep is working, then write the outcome back. These are the integration categories and what each should do:
| Integration | What it should do for the SDR | Examples |
|---|---|---|
| CRM | One record per account and person, with lead source and stage history | Salesforce, HubSpot, Attio |
| Sales engagement | Run sequences and calls, and log every touch to the CRM | Outreach, Salesloft |
| Contact and company data | Verified emails, phone numbers and firmographics for fit scoring | ZoomInfo, Apollo |
| Enrichment and list building | Fill gaps and build custom target lists | Clay |
| Prospect research | Find the right people, see who your team is connected to, and get alerts on saved leads | LinkedIn Sales Navigator |
| Signals | Website visits, intent, job changes and hiring, routed to the owner | Website visitor and intent tools, job change tracking |
| Conversation intelligence | Record calls so qualification and handoff notes are accurate | Gong |
| Team chat | Put signals and asks where the team already works | Slack |
| Warm paths | Score who on your side knows the buyer, draft the ask, chase it and log it as nearbound | Boomerang AI |
Boomerang AI connects to Salesforce, HubSpot, Attio, Gmail, Outlook, Gong, Outreach and Slack, and to Claude and Codex over MCP. Rudy, its AI referral agent, sits in the deal channel and answers a signal on a target account with the paths in, not just the alert.
An integration checklist for SDR leaders
- Does every tool write back to the same CRM record, without creating duplicates?
- Is nearbound a lead source value, with a field for the path?
- Do signals reach the account owner in Slack or the CRM within the day they fire?
- Can a rep see fit, intent, timing and access on one screen before reaching out?
- Are relationship asks governed, so the same executive or investor is not asked too often?
More questions
What is the difference between an SDR and a BDR?
Many companies use the titles interchangeably. Where they are split, SDRs usually work inbound leads and BDRs work outbound target accounts. Both are measured on qualified meetings and opportunities handed to AEs.
Does Boomerang AI need SDRs to connect LinkedIn or their mailbox?
No. LinkedIn and mailbox connections are optional. Boomerang AI builds its relationship graph from the systems you already have, such as CRM history, calendars, call transcripts, investor databases, work overlaps and Slack, so there is nothing for connectors to upload.
Frequently asked questions
What does a sales development representative do?
A sales development representative (SDR) finds and qualifies new pipeline for account executives: researching target accounts, reaching the right people, booking first meetings and confirming there is a real evaluation before handing the opportunity to an AE.
What makes an SDR lead high quality?
A high quality lead scores well on four things: fit (the account matches your ideal customer profile and the person is in the buying committee), intent (they are researching you or the category), timing (a trigger event gives them a reason to act now) and access (someone on your side already knows them).
How do you measure SDR lead quality and conversion?
Measure rates rather than volume: reply rate, meeting rate, qualification rate and close rate. Split each rate by lead source (outbound, inbound, events and nearbound) over a fixed window of closed opportunities so sources are compared fairly.



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