Contents
- HubSpot, Harvest and PandaDoc each do their own job well, but the retainer cap, the proposal-to-budget handoff, overage invoicing and profitability fall between them.
- Migrate CRM first, then time, then proposals, then billing, and keep the old tools read-only for one billing cycle.
Choose agency management software around the work that falls between your tools: retainer caps, proposal-to-budget handoffs, overage invoicing and client margins. Plan your transition around the capabilities available in your chosen plan.
This guide is meant to be checkable. every capability claim names the tool, and the section on what the stack still does better is as long as the section on what it does not.
What does each tool do well?
All three are good products, and an agency that is happy with them has no reason to move. The case for replacing them is about the gaps between them, not weaknesses inside them.
| Tool | Genuine strengths |
|---|---|
| HubSpot | Marketing automation, email sequences, a large ecosystem of integrations and partner apps, mature reporting and dashboards |
| Harvest | Fast timers on desktop and mobile, mature invoicing generated from time, a wide integration list including accounting and project tools |
| PandaDoc | A capable document editor, templates, a content library for reusable blocks, and CPQ features for configured pricing |
HubSpot's sequences and workflows are the standard for outbound at agencies that run their own pipeline hard. Harvest's timer is one of the fastest to start and stop, which is why teams keep using it. PandaDoc's editor produces proposals that look like the agency's brand, and the content library means a new proposal starts from approved blocks rather than a blank page. See the individual comparisons at /compare/hubspot-alternative-for-agencies, /compare/harvest-alternative-for-agencies and /compare/pandadoc-alternative-for-agencies.
What falls between the three tools?
The stack breaks at the handoffs. Each tool holds one piece of the retainer, and the rules that connect the pieces live in a spreadsheet or in someone's head.
| Gap | Where it should live | Where it lives in the stack |
|---|---|---|
| The retainer cap (hours or dollars per month, by department) | Against the client, visible to the timer | Nowhere. Harvest has project budgets, but the monthly cap by department is a spreadsheet |
| Proposal line items becoming time budgets | On approval | Manual. Someone reads the PandaDoc and types budgets into Harvest |
| Time becoming an invoice with overages | At month end | Harvest invoices hours. Retainer-in-advance plus pre-paid overage plus hourly overage is manual |
| Profitability from contracted revenue | Per client, monthly | A spreadsheet joining HubSpot deal values, Harvest hours and payroll |
| Client reporting | In the client's hands | A fourth tool, or a monthly deck |
The consequence is a servicing gap nobody sees until the quarter closes. The account manager sees hours in Harvest but not the cap. The owner sees the retainer in HubSpot but not the hours. The invoice goes out for the retainer and the 30 hours of overage sit as unbilled work.
How do the capabilities compare?
This table covers the handoff capabilities, which is where the two approaches differ. It does not cover marketing automation, CPQ or integration breadth, where the stack is ahead; those are in the section after cost.
| Capability | HubSpot + Harvest + PandaDoc | Verbial |
|---|---|---|
| Proposal to project handoff | Manual re-entry of line items into projects and budgets | Accepted proposal line items become the project's budgets by department |
| Retainer pacing by department | Harvest project budgets, not monthly, not by department | Monthly cap per department, burn visible in the timer |
| Overage invoicing | Hourly invoices from Harvest; retainer plus overage combined by hand | Retainer in advance, pre-paid overage blocks, hourly overage from approved time on one invoice |
| Profitability from contracted revenue | Spreadsheet joining three exports and payroll | Computed from contracted revenue and absorbed cost, idle time on its own line |
| Client portal | Not included in this stack | Sharing by link, without an account or seat |
| White label | HubSpot and PandaDoc support custom branding on some tiers | Agency plan and above, or the white label add-on |
| Data export | Each tool exports its own objects | Full JSON export of the workspace |
The right-hand column is a description of how Verbial works, not a claim that the stack cannot be made to do these things. With enough Zapier and enough discipline, it can. The question is whether the agency wants to maintain that.
Choose on the value to your agency
Compare the quality of your decisions, your proposal-to-payment process and your visibility into client margins. See /pricing for current plans. Starter is available now; Growth and Pro are coming soon. Check each vendor’s website for current pricing.
What does the stack still offer that Verbial does not?
The remaining gaps matter. An agency that depends on any of these should either keep that tool alongside Verbial or decide the gap is acceptable.
| Capability | Stack | Verbial |
|---|---|---|
| Marketing automation and email sequences | HubSpot, at full depth: workflows, sequences, lead scoring, landing pages, ads | Campaigns, workflows and email templates in the CRM, at a lighter depth |
| CPQ and configured pricing | PandaDoc CPQ features and pricing tables | Proposal line items and packages, no configurator |
| Content library for proposals | PandaDoc, with approval and reuse | Templates and reusable service items |
| Integration breadth | Harvest and HubSpot each connect to hundreds of third-party tools | A shorter list, plus a write API for lead intake in beta and Claude/MCP in beta |
| Document editor | PandaDoc, full editor with rich layout | Proposal editor built for service line items |
A common outcome is to replace Harvest and PandaDoc, move the CRM, and keep HubSpot's free or Starter tier for marketing email if sequences are a core outbound channel. That still removes the spreadsheet between proposal, time and invoice, which is where the money was leaking.
In what order should we migrate?
Migrate in dependency order. Every later object points at an earlier one, so the order is fixed.
| Step | What moves | Why this order |
|---|---|---|
| 1. CRM | Companies, contacts, deals, pipeline stages | Clients in the time system are companies from the CRM |
| 2. Time | Clients, projects, tasks, time entries | Projects need clients; entries need projects, tasks and people |
| 3. Proposals | Templates, reusable blocks, open proposals | Proposals attach to deals and companies |
| 4. Billing | Invoice history, retainer terms, overage blocks | Invoices reference clients, projects and approved time |
At each step, run a dry run before committing. A dry run parses the export, matches every row, and produces a problem list without writing anything. Read the problem rows. They are almost always one of four things: a person with a different email in two tools, a client named two ways, a project with no client, or a time entry pointing at a task that was deleted.
Match people by email, not by name. "Sam Patel" in Harvest and "Samir Patel" in HubSpot are one person if the email matches. Fix the mismatches in the source tool, re-export, and dry run again until the problem list is empty or every remaining row is one you have chosen to skip.
Verbial's migration hub imports from HubSpot, Pipedrive, Salesforce, Close, Zoho, Harvest, Toggl Track, Clockify, Everhour, Productive.io, Asana and monday.com, with dry run and whole-import rollback. Rollback removes everything a single import created, so a bad step can be reversed without touching the records from the steps before it. The full checklist is at /blog/switching-agency-software-migration-checklist.
What does the cut-over weekend look like?
Keep the team on the old timer through Friday. Cut over on a weekend so nobody is logging time in two places.
| When | Who | What |
|---|---|---|
| Friday, 5pm | Admin | Final export from HubSpot, Harvest and PandaDoc. Dry run all four steps. Read problem rows |
| Friday, 7pm | Admin | Fix mismatches at source, re-export, dry run again. Commit CRM and time when clean |
| Saturday | Admin, one account manager | Spot-check 10 clients end to end: company, contacts, projects, last month's hours, budgets |
| Sunday | Admin | Commit proposals and billing. Set retainer caps by department for every active client |
| Monday, 9am | Whole team | Old timer read-only. Everyone on the new timer. Fifteen-minute walkthrough |
| Monday, end of day | Managers | Confirm every delivery person has logged at least one entry |
| One billing cycle later | Admin | Reconcile the first invoices against the old tool, then archive it |
Keep the old tools read-only for one full billing cycle. The first month-end invoice run is where any mis-mapped retainer term or overage block shows up, and you want the old invoice history next to the new one to compare. After that cycle closes clean, archive the old accounts.
What should we check in the first month?
Three things, in this order. First, that retainer burn is visible to account managers for every active client by the second week; if a cap is missing, the timer cannot warn anyone. Second, that the first invoices match what the old tool would have produced, plus any overage the old process was missing. Third, that the profitability report shows every client with contracted revenue and absorbed cost, with idle time on its own line and not smeared across accounts.
If all three hold, the spreadsheet between the tools is gone and the gap it was hiding is now a number someone owns. Start free at /signup.