For a CRM-to-accounting connection, start with a native connector if it can handle your records, approval rules, and exceptions. Compare the cost of setting it up and keeping it accurate before paying for a custom build. The price of a platform is only one part of that budget: include supplier work, recurring fees, support, and the time your staff spend checking failures.
Public prices are useful reference points, not quotes for your workflow. Zapier lists Professional from $19.99 per month with annual billing. One supplier lists $7,500–$18,000 for a CRM-to-ERP sync component within a larger implementation. The figures cover different things and do not establish a typical integration price.
TL;DR
- Start with a native connector if it handles the required records, approvals, and exceptions; price custom work only for gaps that matter.
- Zapier lists Professional from $19.99 per month with annual billing; setup, other software, and usage beyond the selected plan can add cost.
- One supplier lists $7,500–$18,000 for a CRM-to-ERP sync component within a larger implementation; that is not a standalone market price.
- Compare the same scope over 12 and 36 months, including setup, platform charges, support, and the buyer's review time.
- In the hypothetical comparison below, the lower-setup quote costs $8,560 in year one; the higher-setup quote costs $10,040, including valued staff time.
- With the example's unchanged costs, the higher-setup quote becomes cheaper after 20 full months when staff time is included, or 27 months on supplier cash costs alone.
What does an API integration cost?
An integration costs the initial work to connect and test the systems, plus the fees and people needed to keep the connection working. There is no reliable single price for every integration: a one-way draft invoice and a two-way financial sync have different rules, risks, and support needs.
The following published US-dollar examples show why you need to separate a subscription from implementation work. Prices were checked on November 6, 2026.
| Published example | Price and scope | What it does not establish |
|---|---|---|
| Zapier Professional | Starts at $19.99 per month, billed annually, for the platform. The current pricing page lists multi-step workflows and webhooks. | It is not a setup quote. Your task usage, selected plan, connected software, and support work can add cost. |
| Trango Tech CRM and ERP implementation | The supplier lists $7,500–$18,000 for the sync component inside an $18,000–$45,000 CRM and ERP implementation. The complete rollout is listed at 8–14 weeks. Its prices were reviewed August 3, 2026. | The component is part of a broader bidirectional ERP rollout. It is not the price or timeline for a simple CRM-to-accounting connector. |
| Gilzor accounting integration estimate | The supplier’s October 2026 guide lists $10,000–$35,000 for an accounting integration involving invoices and payments. | This is one supplier’s estimate for a category, not a survey or a quote for your systems. The exact scope changes the price. |
A free or inexpensive connector can still need paid configuration, cleanup, testing, and support. Equally, a large implementation estimate should not be treated as the cost of every small connection. Use the integration planning guide to define the records, owners, and failure rules before comparing bids.
Compare two quotes on the same scope
Suppose a business wants approved CRM deals to create draft invoices in its accounting system. Both hypothetical suppliers include one-way transfer, field mapping, duplicate checks, failure alerts, testing, and the same support coverage. The buyer keeps the CRM and accounting subscriptions it already has. The buyer’s staff review exceptions; neither quote promises an automatic financial close.
These are invented numbers to show the calculation. They are not Hapy prices, supplier quotes, market averages, or evidence that one approach always takes less staff time. The monthly supplier charge includes the assumed connector and support fees. Both options exclude tax, changes in scope, and the existing CRM and accounting subscriptions.
| Cost item | Quote A: lower setup | Quote B: higher setup |
|---|---|---|
| One-time setup | $4,000 | $8,000 |
| Supplier charge per month | $300 | $150 |
| Buyer review time per month | 2 hours | 0.5 hours |
| Buyer time valued at $40 per hour | $80 per month | $20 per month |
| First-year supplier cash cost | $7,600 | $9,800 |
| First-year cost including valued buyer time | $8,560 | $10,040 |
| Three-year supplier cash cost | $14,800 | $13,400 |
| Three-year cost including valued buyer time | $17,680 | $14,120 |
The calculation is setup plus monthly supplier charges for the period, then buyer hours × $40 × the number of months. For Quote A in year one, that is $4,000 + (12 × $300) + (12 × 2 × $40) = $8,560. Quote B costs $1,480 more in the first year on this basis, but $3,560 less over three years.
Quote B’s $4,000 higher setup is offset by $210 per month: $150 less in supplier charges and $60 less in valued review time. At those assumed, unchanged amounts, it becomes cheaper after 20 full months. Counting supplier cash alone, the monthly difference is $150 and the crossover is 27 full months. The staff-time value represents capacity, not cash savings unless payroll or other spending actually falls. Validate the assumed review time and support coverage before relying on either comparison.
Which costs belong in an integration budget?
Ask each supplier to show these amounts separately. Use the same record types, approval steps, recovery expectations, and support hours in every proposal.
- Discovery and setup: System access, field mapping, authentication, configuration, and any custom code.
- Data preparation: Matching customer records, cleaning duplicates, deciding the owner of each field, and handling historical records if they are in scope.
- Testing and launch: Normal transactions, duplicates, changed records, failed connections, approval, and a safe recovery process.
- Recurring charges: Connector or platform subscription, required software upgrades, usage fees, hosting, and taxes where applicable.
- Support and ownership: Monitoring, incident response, provider changes, monthly maintenance, who handles exceptions, and what happens outside the agreed hours.
A task allowance is not necessarily the number of invoices you can process. One workflow can perform several billable actions, and some actions have different rates. Zapier’s pricing page describes shared task usage and what happens when an account reaches its limit. Estimate the actions in your workflow and check the selected plan instead of multiplying invoices by a universal task price.
When is a native connector enough?
Use the native connector first when it supports the exact records and fields, the required sync direction, and a recovery process your team can operate. A connector that moves some data is not automatically a fit for the whole finance workflow.
For example, HubSpot’s QuickBooks Online guidance explains that certain invoice fields require custom mappings on an eligible plan. It also warns that existing paid-invoice workflow actions can create duplicate invoices when two-way invoice sync is enabled unless those workflows are adjusted. Check the current documentation and test your own configuration; this example does not describe every CRM or accounting system.
Choose a custom integration when a necessary rule, unsupported field, approval step, or recovery requirement cannot be met safely by the connector. Compare the extra build and support cost against the cost of changing the workflow. Hapy provides business systems and automation services, including custom integration work; a native connector can still be the better choice when it meets the requirement.
What should a quote state before you approve it?
A useful quote names the systems and plans, the records and fields to sync, the direction and timing, the approval point, and who owns the data. It also states what happens to duplicates, rejected records, expired credentials, and missed updates. Request a test using representative records and a named person who can resolve exceptions after launch.
Separate the one-time fee from monthly charges, response coverage, overage rates, and future changes. Ask what the supplier expects your team to do each month. If two bids assume different hours or support, adjust the comparison before choosing the lower number. For a wider product budget, use the custom software cost guide.
