ERP migration

Migrate from Proteus E12ERP to Microsoft Dynamics 365 Business Central

Field-level mapping, validation, and rollback between Proteus E12ERP and Microsoft Dynamics 365 Business Central. We move data and schema; workflows are rebuilt natively in Microsoft Dynamics 365 Business Central.

Proteus E12ERP logo

Proteus E12ERP

Source

Microsoft Dynamics 365 Business Central

Destination

Microsoft Dynamics 365 Business Central logo

Compatibility

83%

10 of 12

objects map 1:1 between Proteus E12ERP and Microsoft Dynamics 365 Business Central.

Complexity

BStandard

Timeline

3-5 weeks

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

Moving from Proteus E12ERP to Microsoft Dynamics 365 Finance and Operations is a structural migration from a flat, small-business ERP into a modular cloud platform with separate companies, posting groups, sites, and dimensional reporting. Proteus organizes data around Revenue Centers as non-standard cost-centre proxies; Dynamics 365 separates Companies, Sites, Warehouses, and Dimensions, so we map Revenue Centers to the nearest dimensional equivalent during scoping. Customers, Vendors, and Inventory Items map directly. Sales Orders and Purchase Orders carry their line-item and status data but require post-migration posting validation. Open AP and AR invoice state cannot be exported from Proteus in documented form, so we flag it explicitly and recommend a manual reconciliation step. Chart of Accounts maps with account-type preservation and currency denomination. Workflows, automations, and report definitions do not migrate; we deliver a written inventory of these for the customer's admin to rebuild in Dynamics 365.

Field-level fidelity

Every standard and custom field arrives verified.

Schema-aware mapping

AI proposes the map; you confirm before any record moves.

Relationships preserved

Parent–child, lookups, and ownership stay linked.

Full activity history

Calls, emails, meetings — with original timestamps.

Attachments & notes

Documents, uploads, and inline notes move with the record.

Why teams make this switch

Two sides of the same decision

Leaving

Proteus E12ERP logo

Proteus E12ERP

What's pushing teams away

  • Smaller vendor footprint than Tier-1 ERPs (SAP, Oracle, NetSuite, Microsoft Dynamics) limits global consultant availability and partner ecosystem.
  • Pricing data is inconsistent across third-party listings (Capterra Ireland and SoftwareSuggest report different entry-point prices), creating procurement confusion.
  • Limited public API documentation makes custom integrations with modern BI, e-commerce, or logistics systems harder than with API-first ERPs.
  • Customers expanding internationally outside Ireland/India coverage may need to migrate to multi-country ERPs with broader localization.
  • Smaller public review footprint makes peer-reference due diligence challenging for buyers comparing against mainstream mid-market ERPs.

Choosing

Microsoft Dynamics 365 Business Central logo

Microsoft Dynamics 365 Business Central

What's pulling them in

  • Deep integration with Microsoft 365, Power BI, and Power Platform means organizations already on the Microsoft stack get identity, reporting, and workflow continuity out of the box.
  • Unified financials, sales, service, and operations replace multiple disconnected systems — users report that data entered once flows through purchase orders, invoicing, and approvals without manual re-entry.
  • Copilot AI features (predictive analytics, embedded business intelligence) are included in both Essentials and Premium tiers, addressing demand for AI without separate module purchases.
  • Named-user licensing with no concurrent model appeals to organizations that want predictable per-seat costs even if some users access the system infrequently.
  • Strong partner ecosystem with certified NAV-to-Business Central migration specialists gives mid-market companies confidence the cutover from legacy Navision can be executed reliably.

Object mapping

How Proteus E12ERP objects map to Microsoft Dynamics 365 Business Central

Each row shows how a Proteus E12ERP object lands in Microsoft Dynamics 365 Business Central, including any object-level transformations, lookup resolution, or schema-design dependencies.

Typical mapping — final map is confirmed during the sample migration step.

Proteus E12ERP

Customer

maps to

Microsoft Dynamics 365 Business Central

Customer

1:1
Fully supported

Proteus E12ERP Customer records map to Dynamics 365 Finance and Operations Customer entities. The customer ID, name, contact details, payment terms, and credit limit transfer. Customer posting groups in Dynamics 365 must be configured before migration to set the correct posting profile for accounts receivable. Currency denomination from Proteus maps to the Customer's transaction currency; INR-based records default to the configured base currency.

Proteus E12ERP

Vendor

maps to

Microsoft Dynamics 365 Business Central

Vendor

1:1
Fully supported

Proteus E12ERP Vendor records map to Dynamics 365 Vendor entities. Vendor name, contact, payment terms, and bank details transfer. Vendor posting groups in Dynamics 365 must be configured to set the correct accounts payable posting profile. Multi-location vendor addresses map to the Vendor address structure in Dynamics 365.

Proteus E12ERP

Inventory Item

maps to

Microsoft Dynamics 365 Business Central

Released Product

1:1
Fully supported

Proteus E12ERP Inventory Items (SKU, description, unit cost, quantity on hand) map to Dynamics 365 Released Products. Stock quantities transfer as on-hand inventory quantities linked to the Inventory site. Unit cost becomes the current inventory cost; Dynamics 365 inventory valuation model (Standard, FIFO, Moving Average) must be configured per item before on-hand quantities are posted. Item model group and storage dimension group assignments happen in Dynamics 365 configuration before migration.

Proteus E12ERP

Sales Order

maps to

Microsoft Dynamics 365 Business Central

Sales Order Header and Lines

1:1
Fully supported

Proteus E12ERP Sales Order records with line items and status map to Microsoft Dynamics 365 Sales Order entities. Order status (open, partially received, closed) maps to the Microsoft Dynamics 365 Sales Order status enumeration. Customer references and pricing transfer; item numbers resolve to the Released Product ID. Order-level charges map to Miscellaneous charges on the Sales Order. We flag Sales Orders with partial receipt for manual review post-migration because Dynamics 365 requires posting profiles for partially invoiced orders.

Proteus E12ERP

Purchase Order

maps to

Microsoft Dynamics 365 Business Central

Purchase Order Header and Lines

1:1
Fully supported

Proteus E12ERP Purchase Order records with vendor references, line items, quantities, and status map to Dynamics 365 Purchase Order entities. Status (open, received, closed) maps to the Dynamics 365 Purchase Order status. Vendor ID resolves to the Dynamics 365 Vendor entity. Line item quantities transfer with delivery status flagged; inventory receipt posting requires that the receiving site and warehouse are configured in Dynamics 365 before lines are posted.

Proteus E12ERP

Revenue Center

maps to

Microsoft Dynamics 365 Business Central

Site + Financial Dimension

lossy
Fully supported

Proteus E12ERP Revenue Centers represent branches or cost centres without a standard ERP equivalent. We map each Revenue Center to a Dynamics 365 Site record (for inventory transactions) and a Financial Dimension value (for financial reporting). The dimension set is assigned to the Chart of Accounts structure in Dynamics 365. If Proteus Revenue Centers overlap in meaning with Departments, we also create a Department dimension and assign the appropriate values. The customer reviews the dimension mapping during scoping because Revenue Center naming conventions vary significantly between deployments.

Proteus E12ERP

Chart of Accounts

maps to

Microsoft Dynamics 365 Business Central

Chart of Accounts with Account Type and Category

1:1
Mapping required

Proteus E12ERP account codes and types map to Dynamics 365 Chart of Accounts with Account Type (Ledger, Expense, Revenue, Asset, Liability), Account Category, and Posting Profile. Main account numbers transfer directly; sub-account structure maps to Financial Dimension combinations. Currency denomination per account is preserved. We validate that each account type maps to a valid Dynamics 365 posting profile before import. Balance carryforward requires a separate year-end close process in Dynamics 365 after migration.

Proteus E12ERP

Open AP

maps to

Microsoft Dynamics 365 Business Central

Open AP / Vendor Transaction

1:1
Fully supported

Proteus E12ERP open invoice state (unpaid purchase orders and outstanding vendor liabilities) is not documented as an exportable object. We cannot guarantee completeness of open-AP records from the source export. We flag this explicitly and recommend that the customer's finance team manually creates open vendor transactions in Dynamics 365 Accounts Payable after migration, referencing the original Proteus PO number and vendor statement. This is a manual step outside the automated migration scope.

Proteus E12ERP

Open AR

maps to

Microsoft Dynamics 365 Business Central

Open AR / Customer Transaction

1:1
Fully supported

Proteus E12ERP open invoice state (outstanding customer invoices and receivables) is not documented as an exportable object. We cannot guarantee completeness of open-AR records from the source export. We flag this explicitly and recommend that the customer's finance team manually creates open customer transactions in Dynamics 365 Accounts Receivable after migration, referencing the original Proteus invoice number and customer statement. This is a manual step outside the automated migration scope.

Proteus E12ERP

Sales/Purchase Pricing

maps to

Microsoft Dynamics 365 Business Central

Trade Agreements

1:many
Fully supported

Pricing rules attached to Sales Orders or Purchase Orders in Proteus E12ERP may exist as customer-specific or vendor-specific price lists. We extract these as separate price agreement records and map them to Dynamics 365 Trade Agreements (price and discount journal lines). Price types are assigned (Purchase Price or Sales Price) and the applicable item, vendor, or customer is linked. If Proteus pricing is embedded in order lines rather than a master price list, we reconstruct trade agreements from order history.

Proteus E12ERP

Customer Contact

maps to

Microsoft Dynamics 365 Business Central

Contact (per Customer)

1:1
Fully supported

Proteus E12ERP Customer records may include contact-level detail (primary contact name, phone, email). These map to Dynamics 365 Contact records linked to the Customer entity. Multiple contacts per customer map to separate Contact records with the Customer as the parent. Contact purpose and role are preserved as Contact fields. We do not migrate the CRM activity history embedded in the Proteus CRM module as engagements; the activity model in Dynamics 365 Finance and Operations differs significantly from the CRM activity timeline.

Proteus E12ERP

Vendor Contact

maps to

Microsoft Dynamics 365 Business Central

Contact (per Vendor)

1:1
Fully supported

Proteus E12ERP Vendor records include contact-level detail. These map to Dynamics 365 Contact records linked to the Vendor entity. Primary contact information transfers; additional contacts create separate Contact records with the Vendor as the parent. Contact details (phone, email, address) are preserved. Vendor-sourced purchase communication history does not migrate as activities in Dynamics 365 Finance and Operations because the activity model differs from CRM-oriented systems.

Gotchas + challenges

What specifically takes care here

Platform-specific issues from each side, plus the pair-specific challenges that don't show up on either platform's page on its own.

Proteus E12ERP logo

Proteus E12ERP gotchas

High

Multiple Proteus-branded products exist; correct vendor identity must be confirmed

High

Industry-vertical configurations require customization that doesn't always export cleanly

Medium

Inconsistent public pricing across third-party listings

Medium

Limited public API documentation

Microsoft Dynamics 365 Business Central logo

Microsoft Dynamics 365 Business Central gotchas

High

Named-user licensing has no concurrent-use relief

High

API rate limits throttle large-volume migrations

Medium

Historical posted transactions require selective migration scoping

Medium

NAV-to-Business Central cloud migration requires partner coordination

Low

Custom fields and AL extensions require separate migration handling

Pair-specific challenges

  • Open AP and AR invoice state is not exportable from Proteus E12ERP

    Proteus E12ERP does not expose open accounts payable or accounts receivable invoice state as a documented exportable object in its web interface or CSV export. This means outstanding customer invoices and unpaid vendor bills cannot be migrated through the API. We flag this as a manual step: the customer's finance team reconciles the Proteus vendor and customer statements against Dynamics 365 after migration and creates open transactions manually. Failure to do this results in a gap between the balance sheet in Dynamics 365 and the actual outstanding receivables and payables as of cutover date.

  • Revenue Centers have no direct Dynamics 365 equivalent

    Proteus E12ERP's multi-location module uses Revenue Centers to represent branches or cost centres. This is a non-standard ERP concept with no one-to-one mapping in Dynamics 365 Finance and Operations. We resolve Revenue Centers to a combination of Sites (for inventory transactions), Financial Dimensions (for reporting), and optionally Departments. The mapping depends heavily on how the customer has structured their Revenue Centers in Proteus, and the customer must validate this mapping during scoping. Mis-mapping Revenue Centers results in inventory transaction failures or misaligned financial reports.

  • Dynamics 365 requires posting groups and dimension configurations before data import

    Dynamics 365 Finance and Operations enforces posting profiles, item model groups, storage dimensions, and financial dimension sets as hard prerequisites for transaction import. Sales Orders cannot be posted, Purchase Orders cannot be confirmed, and inventory cannot be received without these configurations in place. We configure the destination schema (posting groups, site, warehouse, dimension set, item model group, account structure) before any record import begins. Migrations that skip this step result in 100 percent record rejection on first import. The customer's finance and operations leads must validate the configuration before migration begins.

  • Data quality issues in legacy Proteus data will block Dynamics 365 import

    Legacy small-business ERPs like Proteus E12ERP frequently contain duplicate customer and vendor records, missing contact details, inconsistent inventory unit-of-measure definitions, and special characters in account names that Dynamics 365 validation rules reject. We profile the source data before migration, flag duplicates, null required fields, and mismatched data types, and deliver a cleansing report to the customer. Dynamics 365 cannot validate the original business intent behind partial or corrupted records. Skipping the data quality step before migration means carrying years of accumulated errors into the new system.

  • Chart of Accounts migration requires a year-end or period-close reconciliation

    Proteus E12ERP account balances are tied to the chart-of-accounts structure in the source system. When migrating to Dynamics 365, the account structure and opening balances require a balance-verification step against the Proteus trial balance as of the migration date. Dynamics 365 requires that opening balances are entered via the General Journal and that year-end close has been performed or a cutover period has been established. If the Proteus fiscal year is still open, the customer's accountant must close the period before we can post opening balances in Dynamics 365.

Migration approach

Six steps for a successful Proteus E12ERP to Microsoft Dynamics 365 Business Central data migration

  1. Discovery and source export

    We audit the Proteus E12ERP deployment across modules in use (Financials, Inventory, Sales, Purchase, CRM), the Revenue Center count and naming convention, the chart-of-accounts structure, the open-order volume (pending Sales Orders and Purchase Orders), and the available export format. We extract Customers, Vendors, Inventory Items, Sales Orders, Purchase Orders, and Chart of Accounts from the web interface or delimited export. We run a data profiling pass to identify duplicates, null required fields, and special-character issues, and deliver a cleansing report to the customer's finance lead before any import begins.

  2. Dynamics 365 destination schema configuration

    We configure the Dynamics 365 Finance and Operations destination environment before any data import. This includes provisioning the Company, configuring Sites and Warehouses (mapped from Proteus Revenue Centers), setting up the Chart of Accounts with account types and categories, defining posting groups for Customers and Vendors, configuring item model groups and storage dimensions for inventory, and establishing the financial dimension set structure. We deploy into a Sandbox environment first for validation. The customer's finance and operations leads review and sign off on the schema configuration before production migration begins.

  3. Sandbox migration and reconciliation

    We run a full migration into the Dynamics 365 Sandbox using production-like data volume. The customer's team reconciles record counts, spot-checks 25-50 records per object against the Proteus source, and validates that Revenue Centers map to the correct Sites and Dimensions. Revenue Center mapping corrections, account structure adjustments, and posting group assignments happen here. No production data moves until the Sandbox migration is signed off.

  4. Master data migration in dependency order

    We migrate record types in dependency order: Chart of Accounts (prerequisite for all financial transactions), then Customers and Vendors (with posting group assignment), then Inventory Items (with item model group and storage dimension assignment), then Sales Orders and Purchase Orders (with line-item resolution to products). Revenue Centers are mapped to Sites and Financial Dimensions during this phase. Each phase emits a row-count reconciliation report before the next phase begins. Open AP and Open AR records are flagged as manual-create and deferred to post-migration.

  5. Manual open-invoice reconciliation

    The customer's finance team creates open vendor and customer transactions in Dynamics 365 Accounts Payable and Receivable modules, referencing the original Proteus PO numbers and invoices from the statement produced during discovery. We provide a template with the Proteus open-order report fields mapped to Dynamics 365 transaction fields. This step is a prerequisite for a clean cutover balance sheet and must be completed before the Dynamics 365 system is set as the system of record.

  6. Cutover, validation, and handoff

    We freeze writes in Proteus E12ERP during cutover, run a final delta migration of any records modified during the migration window, then enable Dynamics 365 as the system of record. We deliver a written inventory of any workflows, automations, or report definitions from Proteus E12ERP that require rebuild in Dynamics 365. We support a one-week hypercare window for reconciliation issues. We do not rebuild Proteus automations as Dynamics 365 workflow or business event configurations inside the migration scope.

Platform deep dives

Context on both ends of the pair

Proteus E12ERP logo

Proteus E12ERP

Source

Strengths

  • Mid-market vertical fit for pharma, engineering, food & beverages, chemicals, construction
  • Single integrated platform covering finance, inventory, procurement, production, warehouse, reporting
  • Manufacturing planning with materials, labor, machinery as joint constraints
  • Mobile and AI automation positioning attracts modernization-focused buyers
  • Customizable modules per industry vertical

Weaknesses

  • Smaller vendor footprint than Tier-1 ERPs
  • Inconsistent public pricing data across directories
  • Limited public API and developer ecosystem
  • Regional focus (Ireland/India base) limits multinational deployments
  • Smaller public review/reference footprint
Microsoft Dynamics 365 Business Central logo

Microsoft Dynamics 365 Business Central

Destination

Strengths

  • Tight integration with Microsoft 365 (Outlook, Teams, SharePoint) for users already in the Microsoft ecosystem.
  • Includes Copilot AI, predictive analytics, and embedded Power BI dashboards at no additional cost in both license tiers.
  • Supports multiple companies within a single tenant for holding-company or multi-entity organizational structures.
  • Open REST API v2.0 with OAuth 2.0 authentication and data entity abstraction layer for developer-friendly integrations.
  • Strong partner ecosystem specializing in NAV-to-Business Central migrations provides implementation confidence for legacy upgrades.

Weaknesses

  • Named-user licensing model means every active user account requires a paid license — no concurrent access model to reduce costs for occasional users.
  • SaaS-only deployment means no on-premises option; organizations requiring full data residency control may not have viable alternatives within Microsoft's stack.
  • Manufacturing module (Production Orders, routing, work centers) is only available on Premium tier, pushing cost-sensitive manufacturers to higher-priced plans.
  • Customization and extension development requires AL language knowledge and developer licenses, limiting what power users can do without a partner engagement.
  • Global pricing increases effective October 2024 and again October 2025 after five years of stable pricing, creating budget uncertainty for existing customers.

Complexity grading

How hard is this migration?

Standard ERP migration. 2 of 8 objects need a mapping; the rest are 1:1.

B

Overall complexity

Standard migration

Derived from compatibility, mapping clarity, API constraints, and data volume across Proteus E12ERP and Microsoft Dynamics 365 Business Central.

  • Object compatibility

    B

    2 of 8 objects need a mapping; the rest are 1:1.

  • Field mapping clarity

    C

    Field mapping is derived from defaults — final spec confirmed during the sample migration.

  • Timeline complexity

    B

    8-object category — typical timelines run 2–7 days end-to-end.

  • API constraints

    B

    Proteus E12ERP: Not publicly documented.

  • Data volume sensitivity

    B

    Proteus E12ERP doesn't expose a bulk API — REST + parallelization used for high-volume runs.

Estimator

Estimate your Proteus E12ERP to Microsoft Dynamics 365 Business Central migration cost

Rule-based pricing — no per-record fees, no manual quotes. Migrations over 2M records are scoped individually.

Step 1

What are you migrating?

Pick a category, then your source and destination platforms.

Category

FAQ

Frequently asked questions about Proteus E12ERP to Microsoft Dynamics 365 Business Central data migrations

Answers to the questions buyers ask most during Proteus E12ERP to Microsoft Dynamics 365 Business Central migration scoping. Not seeing yours? Book a call.

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Most migrations land between three and five weeks for accounts under 5,000 Customers, 2,000 Vendors, and 10,000 inventory items with a single Revenue Center structure and no complex chart-of-accounts restructuring. Migrations with multiple Revenue Centers, large open-order volumes (over 500 Sales Orders or Purchase Orders), or chart-of-accounts restructuring requiring a period-cutover move to eight to fourteen weeks because of dimensional mapping complexity and the manual open-invoice reconciliation step.

Adjacent paths

Related migrations to explore

Ready when you are

Move from Proteus E12ERP.
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