Migrate your Proteus ERP data
Integrated cloud ERP for small and growing businesses, combining CRM, accounting, inventory, and e-commerce under one subscription since 2002.
In its favor
Why people choose Proteus ERP
The signal that keeps Proteus ERP on the shortlist. Sourced from G2, Capterra, and customer scoping calls.
Low total cost of entry — proteuserp.com has positioned itself as an affordable all-in-one since 2002, attracting startups and small businesses that cannot justify ERP licensing costs at scale.
No data silos between modules — every transaction updates inventory and accounting simultaneously, reducing manual reconciliation that frustrates users of stitched-together point solutions.
E-commerce back-end included — rather than paying separately for a storefront and an ERP, small retailers use Proteus to manage website items, inventory, and payments in one place.
Simple per-business pricing model — the platform is marketed as a flat subscription, without per-user or per-module billing that confuses buyers comparing ERPs.
Local business fit for US SMBs — the platform's language, GST handling, and US payment portal integrations match the operational stack of small American retailers.
Small-vendor risk and longevity concerns — as a niche ERP with limited market visibility, customers worry about vendor stability and long-term support if the company scales down or pivots.
Feature stagnation compared to cloud-native ERPs — the platform has not prominently adopted AI, microservices, or real-time analytics that competitors now market as standard for growing businesses.
No public API or developer ecosystem — power users report being unable to build custom integrations without reverse-engineering the database, limiting automation potential.
Limited industry-specific functionality — the one-size-fits-all module set lacks depth for manufacturing, pharma, or professional services workflows that specialized ERPs address out of the box.
Scalability ceiling for multi-entity operations — businesses expanding across states or countries report the platform's accounting and compliance features cannot easily handle multi-entity consolidation.
Reasons to switch
Why people leave Proteus ERP
The recurring reasons buyers give for replacing Proteus ERP. Presented as facts, not knocks.
Platform scorecard
Strengths, weaknesses, and where Proteus ERP fits
Grades across six dimensions, plus a SWOT-style view of where the platform shines and where it falls short.
SWOT — strengths, weaknesses, and use-case fit
Strengths
Weaknesses
Where it works
Where it struggles
Pricing tiers
Proteus ERP pricing overview
Proteus ERP (proteuserp.com — Proteus Business Software in Vista, CA) does not publish pricing tiers. The product is positioned as an integrated ERP/CRM/accounting/inventory/e-commerce/POS suite for small businesses sold via direct sales (phone +1 858 566 6060, email [email protected]). Quotes are issued after a scoping call and bundle all modules rather than charging per-module. Note: a separate, unrelated product called Proteus CMMS has its own published per-user pricing — do not confuse the two.
Proteus ERP (sales-led integrated suite)
Tier 1 of 1
Custom (sales-led — not publicly listed)
What's included
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Book a free 30 minute consultationPricing is informational. FlitStack AI does not bill on Proteus ERP's schedule — see our quote-based pricing →
What gets migrated
Proteus ERP object support
Object-by-object support for Proteus ERP migrations. Per-pair details surface during scoping.
Customers
Fully supportedCustomer records store contact data, buying habits, and referral source information. We extract all customer fields from the database export and map them to the destination system's equivalent contact or account object, preserving any custom fields on the Proteus side.
Vendors
Fully supportedVendor master records are included in the standard export. We handle vendor code mapping to avoid collisions when the destination system already has vendor records.
Chart of Accounts
Mapping requiredThe accounting module uses a structured COA with GST-compliant coding. Account codes may use different segment lengths or naming conventions than the destination; we build a mapping table before writing the import.
Items (Inventory)
Fully supportedItem records include SKU, description, stock levels, pricing tiers, and linked revenue center assignments. We export all item data and handle multi-revenue-center flagging at import time.
Sales Orders
Mapping requiredOpen and historical sales orders carry header-level and line-level data. Line item mapping requires aligning the destination system's product IDs with Proteus item codes.
Purchase Orders
Mapping requiredPurchase orders are tracked with vendor associations and line items. We preserve the PO-to-receive linkage where the destination supports it.
Invoices
Mapping requiredInvoice records include GST/HST data and payment status. Historical invoices may need date-range scoping given export file sizes.
Employees
Fully supportedEmployee records are part of the employee management module. We export employee data and map it to the destination HR or user object.
E-commerce Orders
Mapping requiredE-commerce orders are integrated into the back-end system with inventory sync. We pull order data and line items, then map to the destination order or transaction object.
POS Transactions
Mapping requiredPOS transactions are captured within the same inventory and accounting system. We extract transaction-level data and map it to the destination's sales or receipt records.
| Object | Support | Notes |
|---|---|---|
| Customers | Fully supported | Customer records store contact data, buying habits, and referral source information. We extract all customer fields from the database export and map them to the destination system's equivalent contact or account object, preserving any custom fields on the Proteus side. |
| Vendors | Fully supported | Vendor master records are included in the standard export. We handle vendor code mapping to avoid collisions when the destination system already has vendor records. |
| Chart of Accounts | Mapping required | The accounting module uses a structured COA with GST-compliant coding. Account codes may use different segment lengths or naming conventions than the destination; we build a mapping table before writing the import. |
| Items (Inventory) | Fully supported | Item records include SKU, description, stock levels, pricing tiers, and linked revenue center assignments. We export all item data and handle multi-revenue-center flagging at import time. |
| Sales Orders | Mapping required | Open and historical sales orders carry header-level and line-level data. Line item mapping requires aligning the destination system's product IDs with Proteus item codes. |
| Purchase Orders | Mapping required | Purchase orders are tracked with vendor associations and line items. We preserve the PO-to-receive linkage where the destination supports it. |
| Invoices | Mapping required | Invoice records include GST/HST data and payment status. Historical invoices may need date-range scoping given export file sizes. |
| Employees | Fully supported | Employee records are part of the employee management module. We export employee data and map it to the destination HR or user object. |
| E-commerce Orders | Mapping required | E-commerce orders are integrated into the back-end system with inventory sync. We pull order data and line items, then map to the destination order or transaction object. |
| POS Transactions | Mapping required | POS transactions are captured within the same inventory and accounting system. We extract transaction-level data and map it to the destination's sales or receipt records. |
Gotchas
What to watch for in Proteus ERP migrations
Issues we've hit on past Proteus ERP migrations, tagged by severity. FlitStack AI handles every one — surfacing them up front because buyer engineering teams want to know.
No publicly documented API forces direct database work
Export file sizes can fragment large transaction histories
Custom fields are not exposed in the standard export
No public pricing page creates billing uncertainty
| Severity | Issue |
|---|---|
| High | No publicly documented API forces direct database work |
| Medium | Export file sizes can fragment large transaction histories |
| Medium | Custom fields are not exposed in the standard export |
| Low | No public pricing page creates billing uncertainty |
Leaving Proteus ERP?
Where Proteus ERP customers move next
6 destinations Proteus ERP can migrate to.
How a Proteus ERP migration works
Four steps, Proteus ERP-specific
Connect
Not publicly documented into Proteus ERP. Scopes limited to read-only on the data we move.
Map
We translate Proteus ERP-specific structures (custom fields, objects, value lists) to the destination's model.
Sample
Test with a 50–200 record subset to validate Proteus ERP quirks before production.
Migrate
Full migration with Proteus ERP rate-limit handling. Rollback available throughout.
FAQ
Proteus ERP migration FAQ
Answers to the questions buyers ask most during Proteus ERP migration scoping. Not seeing yours? Book a call.
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Migrate Proteus ERP.
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Free scoping call with a migration engineer. Tell us about your Proteus ERP setup and destination — written quote back within a business day.