TL;DR
- HeyReach is the strongest default for synchronising several LinkedIn senders: separate connection and reply events, a continuing-reply trigger and conversation retrieval.
- Expandi offers useful event distinctions and failed-delivery replay. Its reply webhook depends on inbox synchronisation during active hours, so it suits campaign reporting better than a promise of immediate reply handling.
- Dripify Pro now supports a conversation-bearing reply webhook. Its native HubSpot integration is attractive for existing contacts, with identity and backfill boundaries that matter.
- La Growth Machine Pro fits a team keeping LinkedIn and email conversations together. PhantomBuster fits scheduled connection and inbox reconciliation rather than continuous event delivery.
- Keep connection facts, reply ownership and suppression separate. A new connection should not automatically clear an opt-out or restart outreach.
What needs to stay in sync
A representative accepts a connection, replies from the LinkedIn mobile app, and then receives an automated follow-up because the CRM still says “awaiting reply”. That is the buying problem here: the sending tool, conversation inbox and CRM disagree about what happened.
Four records deserve separate treatment. Connection state records whether an invitation is pending or a connection exists. Conversation state records messages and their direction. Ownership identifies who should answer. Commercial outcome records interested, wrong timing, not interested or opted out. An accepted invitation establishes a relationship on LinkedIn; it does not establish buying intent.
Use a LinkedIn profile identifier or normalised profile URL to join the person across systems. Keep the sending account and conversation identifier alongside it. Two representatives can talk to the same person, and combining their threads into one undifferentiated “last reply” field loses ownership. A CRM contact ID is the destination mapping, not proof that a name-only match found the correct person.
This article compares event capture and consistent records. The API and webhook guide covers broader programmatic operations; the unified inbox comparison covers where people actually handle conversations.
Event coverage and qualifying prices
Prices below were assessed on 1 October 2026. USD and EUR are kept separate. Two sender accounts, month-to-month billing unless stated, provide the common purchase unit. Existing CRM subscriptions, tax and custom integration work are additional.
| Tool | Connection and reply coverage | Important timing or identity boundary | Qualifying base and two-sender cost |
|---|---|---|---|
| HeyReach | Connection sent/accepted; first reply and every subsequent message reply; conversation retrieval | Select the continuing-reply event; preserve sender and conversation IDs | Growth $79 per sender/month; $158/month for two |
| Expandi | General and campaign-specific connection acceptance; several reply events; webhook history and resend | Connection/reply discovery depends on active-time sync; manual responses can suppress reply notifications | Business $99 per account/month; $198/month for two; $79/account/month equivalent annually |
| Dripify | Campaign connection/reply triggers; newer reply payload carries conversation messages | Inbox-visible messages only; native HubSpot currently updates existing contacts | Pro $79 per user/month; $158/month for two; $59/user/month equivalent annually |
| La Growth Machine | LinkedIn/email inbox events plus API conversations and lead logs | Inbox event contract covers messages; do not treat it as a dedicated connection-acceptance webhook | Pro €120 per identity/month; €240/month for two; €100/identity/month equivalent annually |
| PhantomBuster | Connections Export plus scheduled inbox scraping and result comparison | Snapshot at run time; separate sessions/tasks per sending account | Start $56/month equivalent, $672 billed annually, five automation slots and 20 execution hours/month |
The last row is a reconciliation purchase, not a like-for-like replacement for a staffed outreach platform. It can complement a sender already in place. Likewise, paying for API access does not make the CRM mapping or retry operation free.
The five options
1. HeyReach: the clearest LinkedIn event route for multiple senders
HeyReach's public API collection distinguishes CONNECTION_REQUEST_SENT, CONNECTION_REQUEST_ACCEPTED, MESSAGE_REPLY_RECEIVED and EVERY_MESSAGE_REPLY_RECEIVED. That distinction is practical: first-reply attribution can mark a campaign successful, while continuing replies keep a salesperson's current conversation visible downstream.
Its reply integration guide describes payloads with sender, lead, campaign, conversation and message details. The continuing-reply trigger includes later replies and InMail replies; the conversation ID supports fetching the thread. HeyReach also describes tracking messages when the representative answers through LinkedIn in an existing managed conversation. This is a useful bridge between campaign automation and human follow-up, rather than proof of universal access to every personal LinkedIn conversation.
Growth includes API access and webhooks. The pricing documentation charges $79 per sender monthly below ten senders, or $63 per sender/month equivalent annually. Two accounts therefore cost $158 monthly or $1,512 for a prepaid year. The ten-sender $59 monthly rate does not apply to this two-person team.
The native HubSpot integration offers campaign-addition/reply contact triggers and configurable activity logging, including connection activity. Its contact sync needs an email address. A LinkedIn-only lead can therefore be well identified in a webhook but still fail that native contact route. Choose HeyReach when multiple sender identities and ongoing replies are central; choose a custom profile-to-contact mapping when missing email would otherwise drop valuable activity.
2. Expandi: useful event distinctions, with a slower discovery boundary
Expandi's event definitions distinguish general connection acceptance, which includes manual and campaign requests, from acceptance by a contact in an active campaign, which excludes manual requests. General replies, campaign-message replies and the first reply since campaign start are also different events. These distinctions let an operations team record relationship changes without attributing every connection to the latest campaign.
The important limitation is delivery timing. Expandi's webhook timing guide says connection state synchronises during active hours, and replies synchronise every few hours during those hours. Optional batching adds another one, four, eight, twelve or twenty-four hours. A manual response before inbox sync can prevent the reply webhook from firing. Failed deliveries have history and a resend action, but that cannot recover an event that was never emitted.
Business costs $99 per LinkedIn account monthly, or $79/account/month equivalent annually. Two accounts cost $198 monthly or $1,896 annually. Expandi is a reasonable choice for a team already using its campaigns and willing to reconcile reply state. It is a weaker choice when a downstream system must react within minutes to every reply, regardless of manual activity. Treat a revoked invitation as the documented aggregate state, rather than confidently labelling it a personal rejection.
3. Dripify: current conversation sync for an existing-contact CRM
Dripify's current offering is stronger than its older first-reply-only webhook description suggests. The July 2026 campaign documentation introduces “After LinkedIn reply is received”. It transfers new conversation messages, including the lead's replies and the user's messages available in the Dripify inbox. The older first-reply trigger is deprecated. Use the newer trigger for ongoing conversation transfer rather than building around that historical limitation.
Its integrations documentation supports campaign events such as connection acceptance, first message and received reply. Native HubSpot can place conversation activity against a contact. The detailed HubSpot setup guide currently limits this route to existing HubSpot contacts. Matching tries LinkedIn URL, then email, then first and last name. Prefer the first two identifiers: two people with the same name should not inherit each other's outreach history. Manual disconnection has no retroactive backfill, so preserve event records independently during an integration change.
Pro costs $79 per user monthly, or $59/month equivalent annually, and includes the dedicated inbox, webhooks, HubSpot integration and Open API. Basic is cheaper but lacks that bundle. Advanced adds team-management features at $99 monthly or $79/month equivalent annually; two Advanced users cost $198 monthly. Buy Pro for a small existing-contact sync operation, and Advanced when the management features justify it. The Open API's lead/status endpoints and the conversation-bearing webhook are separate capabilities; the latter does not imply a general direct-message API.
4. La Growth Machine: one conversation layer for LinkedIn and email
La Growth Machine is the best fit here when the underlying problem spans both channels. Its API overview documents inbox webhooks for messages sent and received, API conversation access and lead activity logs. API access starts at Pro, at €120 per identity monthly or €100 equivalent annually. Two identities cost €240 monthly or €2,400 prepaid annually.
The current API reference permits campaign filters on inbox webhooks. Lead conversations include the owning identity, channel, last-message time and whether the lead replied; logs carry their own IDs and timestamps. Those fields help prevent an email reply and a LinkedIn reply being counted as two independent new opportunities.
The documented inbox contract covers messages. It does not establish a dedicated acceptance-event contract equivalent to HeyReach's named connection webhook. Use LGM for unified conversations and campaign/log reconciliation; choose the clearer LinkedIn event route when external connection acceptance is the central trigger. For a team already paying for separate email and LinkedIn tools, its higher per-identity price may replace meaningful spending. For a LinkedIn-only operation, compare it against the narrower $158 monthly route rather than assume multichannel capability pays for itself.
5. PhantomBuster: scheduled snapshots for reconciliation
LinkedIn Connections Export produces profile URLs and connection data in CSV or JSON at run time. Comparing an earlier invitation list with a later connection snapshot identifies newly observed connections. The observation time is not necessarily the moment the invitation was accepted.
PhantomBuster's multi-account operating guide describes separate sessions and automations per account, and chaining an inbox scraper before message sending to detect replies and pause further messages. That suits daily maintenance or a supplemental sweep. It requires an explicit receiving process to update the CRM and stop another sender; an exported reply alone does neither.
The annual Start plan is $672, equivalent to $56/month, with five automation slots and twenty execution hours each month. Grow is $1,536 annually, equivalent to $128/month, with fifteen slots and eighty hours. Unlimited workspace users are not unlimited running time. Choose this route for a modest scheduled reconciliation job with someone to maintain sessions and imports. Choose a purpose-built sender webhook when fast conversation routing is the purchase priority.
A two-sender reconciliation example
Consider a fictional team with two LinkedIn senders, an existing CRM and 200 invited people. Over one working week, 40 accept and 12 reply. Ten people reply once and two reply twice, creating 14 incoming messages across 12 conversations. These are editorial inputs, not measured vendor results.
A first-reply trigger produces twelve qualifying notifications, while a continuing-reply route can represent all fourteen incoming messages. The second number improves conversation history; it does not turn the team's 6% person-level reply rate into 7%. Keep campaign performance at the person level and conversation activity at the message level.
Suppose eighteen people have no email, including three who reply. A native connector requiring email could miss those three contact updates even though the sender saw their responses. A custom map can use the profile URL to find the CRM contact and create or hold the record under the team's chosen policy. Conversely, Dripify's existing-contact-only native route does not create a missing contact merely because the profile match is precise.
For one person, an acceptance message arrives after the reply because one delivery was retried. Append both facts, retain their occurrence and receipt times, and keep the person in “replied”. Do not replace that state with “connected” and schedule a fresh follow-up. Deduplicate deliveries by provider event/message ID where supplied; otherwise use a documented composite of sender, person, event, timestamp and message, with collisions visible for review.
The final operation should show 40 newly connected people, twelve replied people, fourteen incoming messages and twelve assigned conversation owners. A nightly sweep of open invitations and unresolved conversations catches gaps. If that sweep finds an opt-out, the cross-platform suppression process must stop eligible outreach elsewhere too. A connection-sync field should never override that decision.
Costs beyond the sender subscription
Use an assumed $75/hour operations rate. Manually reconciling two accounts for ten minutes each on twenty-two working days takes 440 minutes, or 7.33 hours: $550/month. Suppose a maintained integration reduces reconciliation to two minutes per account per day, plus one hour for monthly exceptions. That is 88 minutes plus sixty, or 2.47 hours: $185/month. The recurring labour reduction is $365.
For an existing sender subscription, assume $20/month of incremental integration hosting and six implementation hours, or $450 once. The ongoing saving becomes $345/month; the model repays setup in $450 ÷ $345 = 1.30 months. These are planning assumptions, not a vendor performance promise. No saving is earned if representatives still maintain the same parallel spreadsheet.
A new two-sender HeyReach or Dripify Pro purchase is $158/month before integration and labour. Under the same assumptions, $158 + $20 + $185 equals $363/month. Expandi's equivalent subtotal is $403/month. LGM adds €240/month to the stated dollar-denominated operating costs; converting currencies or treating an existing email subscription as a saving would require a specific replacement decision.
For PhantomBuster, two accounts with one connection-export task and one inbox task each use four configured tasks. At one run per task per working day, twenty-two days yield 88 runs. An assumed four-minute average is 352 minutes, or 5.87 execution hours. An hourly schedule over eight working hours instead yields 704 runs and 46.93 hours, exceeding Start's twenty-hour allowance under the same assumption. Runtime, network size and additional tasks determine the actual tier. A cheaper annual price can therefore be sensible for daily reconciliation but misleading for frequent polling.
Which route to choose
Choose HeyReach for a new LinkedIn-focused team sync: explicit connection events, continuing replies and conversation identifiers make the external state model relatively straightforward. Choose Dripify Pro when the existing Dripify inbox and current HubSpot contacts already form the working process. Its newer conversation trigger removes a substantial historical reason to dismiss it.
Keep Expandi when its campaign operation works and a delayed, reconciled CRM update is acceptable. Choose La Growth Machine Pro when unifying LinkedIn and email ownership removes a real second system. Use PhantomBuster for scheduled supplementary reconciliation, with its runtime budget and session maintenance included in the decision.
The signal-based outbound playbook helps connect these records to actual follow-up decisions. The practical target is a salesperson seeing the correct current conversation and knowing who acts next, without an automated sequence racing ahead of the reply.
FAQ
Does a webhook mean the CRM updates immediately?
It means the provider sends an event to another system. Discovery may occur later through polling, active-hour synchronisation or batching. Expandi explicitly documents those delays. A successful webhook delivery can also precede a failed CRM write, so acknowledgement should follow durable receipt and the receiving process should retain the pending write.
Can the same person have different connection states for two representatives?
Yes. A person may be connected to one sender and have an outstanding invitation from another. Keep relationship state per sender, while mapping both to the same CRM person. Conversation ownership and company-wide suppression then sit above those separate account relationships.
Is Dripify still restricted to the first reply?
Its old first-reply trigger is deprecated. The newer received-reply trigger transfers conversation messages available in the Dripify inbox, including user and lead messages. Existing integrations should select that trigger; the change does not imply access to conversations the inbox never captured.
Is a connected person automatically ready for another sequence?
A connection establishes channel availability. An existing reply, open opportunity, customer relationship or opt-out may still make a new sequence inappropriate. Keep those facts separately and let the current conversation owner decide the next commercial action.
Should a small team build custom sync or use the native CRM connector?
A native connector is the simpler purchase when its contact-creation, matching and event scope match the team. Custom mapping earns its cost when valuable LinkedIn-only leads, multiple senders or missed ongoing replies fall outside that scope. The two-sender example gives a roughly 1.3-month setup payback only when the assumed recurring labour saving actually occurs.
