ERP migration

Migrate from Sage 100cloud to Epicor Prophet 21

Field-level mapping, validation, and rollback between Sage 100cloud and Epicor Prophet 21. We move data and schema; workflows are rebuilt natively in Epicor Prophet 21.

Sage 100cloud logo

Sage 100cloud

Source

Epicor Prophet 21

Destination

Epicor Prophet 21 logo

Compatibility

92%

11 of 12

objects map 1:1 between Sage 100cloud and Epicor Prophet 21.

Complexity

BStandard

Timeline

8-12 weeks

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

Moving from Sage 100cloud to Epicor ERP is a SQL-to-API migration: Sage 100cloud exposes no public REST API for transactional records, so we establish a read-only SQL connection to the underlying Pervasive SQL or Microsoft SQL Server database during discovery, extract data views mirroring the Sage Business Objects Information layer, and load into Epicor Kinetic via REST API calls or the Data Management Tool. We map the Sage Chart of Accounts, AR and AP masters, inventory with multi-bin and BOM structures, fixed asset depreciation schedules, and open sales and purchase orders with line-item detail. We do not migrate Workflows, automations, custom UDFs, or payroll deduction setups as code; we deliver a written inventory of these for the customer's admin to rebuild. Epicor Kinetic's customer retention rate of 97 percent versus Sage 100cloud's 83 percent reflects the operational stability and API access that manufacturing and distribution companies prioritize when leaving the MAS 90/200 codebase.

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

Sage 100cloud logo

Sage 100cloud

What's pushing teams away

  • Escalating subscription costs combined with module-specific licensing fees produce bills that grow faster than the business, driving mid-market customers toward flat-rate or unlimited-user platforms.
  • Persistent software glitches and performance slowdowns in database-heavy operations frustrate finance teams running month-end close under tight deadlines.
  • Limited automation and inability to configure workflow preferences force staff into repetitive manual tasks that modern cloud ERPs handle natively.
  • No modern REST API for live transactional data means integrations with CRMs, e-commerce platforms, and analytics warehouses require fragile workarounds or third-party middleware.
  • The underlying MAS 90/200 codebase shows its age in UI/UX, creating a steep learning curve for new employees and contributing to staff turnover.

Choosing

Epicor Prophet 21 logo

Epicor Prophet 21

What's pulling them in

  • Industry-specific design for wholesale distributors, not a general-purpose ERP repurposed for distribution — distributors choose P21 because it matches their replenishment, kitting, and counter-sale workflows out of the box.
  • Strong inventory control with automated replenishment, lot and serial tracking, and multi-warehouse management appeals to distributors with complex stock requirements and tight margin pressure.
  • Responsive customer support cited across G2 and Gartner reviews, with Epicor's 90% retention rate reflecting long-term customer satisfaction in a market where switching costs are high.
  • Cloud deployment on Microsoft Azure provides the flexibility to scale user counts and warehouse locations without on-premise infrastructure investment.
  • The Software Development Kit lets distributors personalize P21 to their specific business processes without modifying the application source code, preserving upgrade paths.

Object mapping

How Sage 100cloud objects map to Epicor Prophet 21

Each row shows how a Sage 100cloud object lands in Epicor Prophet 21, including any object-level transformations, lookup resolution, or schema-design dependencies.

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

Sage 100cloud

Chart of Accounts (GL Account Master)

maps to

Epicor Prophet 21

GL Account

1:1
Fully supported

Sage 100cloud stores the GL account master in a flat table with optional segment columns (Type, Division, Department). We export the full account structure via SQL query, preserving account code, description, account type, and active status. Epicor Kinetic GL Accounts are created with the same account code structure; segment-aware accounts map to Epicor's standard or advanced account codes depending on the customer's chart configuration. Parent account lookups are resolved before child account inserts to satisfy referential integrity.

Sage 100cloud

Customer (AR Customer Master)

maps to

Epicor Prophet 21

Customer

1:1
Fully supported

Sage 100cloud AR_Customer records include billing and shipping addresses, payment terms, credit limits, salesperson assignments, and 1099 flag. We export the full customer table, validate address completeness, and map each Sage customer to Epicor Kinetic Customer. The Sage customer code becomes the Epicor CustomerCmp.CustID. Payment terms are mapped to Epicor Terms tables, and any Sage customer-specific discounts are preserved as customer price group assignments in Epicor.

Sage 100cloud

Vendor (AP Vendor Master)

maps to

Epicor Prophet 21

Supplier

1:1
Fully supported

Sage 100cloud AP_Vendor records include address, 1099 settings, payment terms, W-9 status, and 1099 box assignments. We export the vendor table and map to Epicor Kinetic Supplier. The Sage vendor code becomes Epicor Supplier.SupplierID. 1099 flag values and W-9 status are preserved in Epicor Supplier fields. Payment terms map to Epicor Terms records. Any vendor-specific discounts are recorded as supplier terms adjustments in the destination.

Sage 100cloud

Inventory Item (IC_Item Master)

maps to

Epicor Prophet 21

Part

1:1
Fully supported

Sage 100cloud Inventory module supports multi-warehouse, multi-bin, lot/serial tracking, and BOM structures across IC_Item and IC_BOM tables. We export Part master records including the stocking unit, costing method, cost levels, and commodity code. The Sage item code becomes Epicor Kinetic Part.PartNum. Stocking UOM and purchasing UOM map to Epicor Part.UOMClass and PartFrostings. For parts using lot or serial tracking, we map the Sage lot-numbering scheme to Epicor's lot and serial number configuration. Bin locations map to Epicor WarehseBin records.

Sage 100cloud

BOM (Bill of Materials)

maps to

Epicor Prophet 21

Part BOM and Revision

1:1
Fully supported

Sage 100cloud IC_BOM tables define multi-level bill of material structures with quantity-per, scrap percentages, and operation steps. We reconstruct the BOM hierarchy in Epicor Kinetic using Part.BOM and PartRev records with the correct revision level, effective dates, and quantity-per relationships. Phantom BOMs, sub-assemblies, and BOM rollups are resolved by traversing the Sage BOM structure before insertion to ensure parent parts exist before their component BOMs are created.

Sage 100cloud

Open AR Invoices

maps to

Epicor Prophet 21

Invoice and AR Invoice

1:1
Fully supported

Open accounts receivable from Sage 100cloud are exported as individual invoice records with original invoice date, due date, amount remaining, aging bucket, and payment status. We preserve the original invoice number, invoice date, and open balance. Sage invoices with partial payments retain the payment history as applied amounts in Epicor's AR Invoice payment records. Unapplied credits migrate as AR Credit memos linked to the customer account. CustomerCmp.CustID is resolved via the customer mapping before invoice insert.

Sage 100cloud

Open AP Invoices

maps to

Epicor Prophet 21

AP Invoice and Supplier Invoice

1:1
Fully supported

Sage 100cloud AP_Invoice and AP_Payment tables are queried to export open accounts payable with header and line-item detail. We preserve vendor ID references, invoice date, due date, payment terms, and balance remaining. Epicor Kinetic AP Invoice records are created with VendorID resolved via the supplier mapping. Sage pre-payments and partially-applied invoices are mapped to Epicor AP adjustments and prepayment records. Historical check registers export as AP Payment records with check number and date preserved.

Sage 100cloud

Fixed Assets

maps to

Epicor Prophet 21

Fixed Asset

1:1
Fully supported

FA_Asset records in Sage 100cloud include acquisition cost, depreciation method, book value, useful life, asset class, location, and accumulated depreciation. We export the full fixed asset register and reconstruct depreciation schedules in Epicor Kinetic Fixed Asset records. Sage depreciation methods (straight-line, declining balance, sum-of-years) map to Epicor depreciation method codes. Placed-in-service date and asset life in months transfer directly. Sage asset classes map to Epicor Asset Group codes.

Sage 100cloud

Sales Orders and Invoices

maps to

Epicor Prophet 21

Order and Order Line

1:1
Mapping required

Sage 100cloud SO_SalesOrder and OE_Invoice headers and line items are accessible via SQL. We export open and held sales orders with customer reference, order date, ship date, and line-item detail including part number, quantity ordered, unit price, and discount. These map to Epicor Kinetic OrderHed and OrderDtl records. Epicor OrderHed.CustNum is resolved via the customer mapping. Custom fields attached to order headers require a separate sidecar extraction and manual mapping to Epicor OrderHed user-defined fields.

Sage 100cloud

Purchase Orders

maps to

Epicor Prophet 21

PO Header and PO Detail

1:1
Mapping required

PO_PurchaseOrder records in Sage 100cloud are accessible via SQL but often include partial receipts already applied in inventory. We export PO header records with vendor reference, terms, and line-item detail including part number or description, quantity ordered, unit cost, and received quantity. Epicor Kinetic POHeader and PODetail are created with SupplierID resolved via the vendor mapping. Any partially-received POs are flagged during scoping so the customer decides whether to export the PO as open or as received before migration.

Sage 100cloud

Job Costing Records

maps to

Epicor Prophet 21

Project and Job

1:1
Mapping required

Sage 100cloud JC_Job and JC_Transaction tables hold project cost tracking data including phases, cost codes, budget vs. actual amounts, and labor and material transactions. Job structures map to Epicor Kinetic Project (for project-based tracking) and JobMfg records (for shop-floor production jobs) depending on the customer's usage. We export phase budgets and cumulative actuals, then reconstruct them in Epicor as project phases with WBS elements. Job transactions requiring Epicor job cost codes are mapped during the scoping phase because the cost code structure differs between platforms.

Sage 100cloud

Custom Fields / UDFs

maps to

Epicor Prophet 21

UD Fields / Custom Fields

lossy
Not supported

Sage 100cloud stores user-defined fields in module-specific extension tables whose schema varies by company database and are not exposed through any standard export path. We identify every UDF during discovery by querying the database schema for non-standard column names per module, export them to a sidecar CSV file, and flag them for manual re-entry in Epicor Kinetic. The sidecar CSV lists the UDF name, the source module, the record types it applies to, and a recommended Epicor UD field target. This step requires planning and budgeting because UDF content is customer-owned re-entry work.

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.

Sage 100cloud logo

Sage 100cloud gotchas

High

No native REST API exposes live transactional data

High

Rate limits and login attempt thresholds block API access

Medium

Parallel Migration Wizard breaks after moving to a new installation

Medium

Custom UDFs and custom fields have no standardized export path

Low

Historical GL periods may be locked or archived

Epicor Prophet 21 logo

Epicor Prophet 21 gotchas

High

Third-party bolt-on integrations complicate migration scope

High

Dirty data without standardized processes compounds migration risk

Medium

SDK customizations and BPMs may not survive platform upgrades

Medium

Report-based export only for non-technical users

Low

Per-user pricing model requires accurate user count before migration planning

Pair-specific challenges

  • Sage 100cloud has no public REST API — SQL access is required for extraction

    Sage 100cloud does not publish a public REST or GraphQL API for real-time export of transactional records including invoices, POs, GL entries, inventory movements, and customer records. All data extraction requires direct SQL queries against the underlying Pervasive SQL or Microsoft SQL Server database. Migration tooling must run inside the customer's network or connect via VPN to the SQL instance. We address this by establishing a secure read-only SQL connection during discovery, extracting data views that mirror the Sage Business Objects Information layer, and validating row counts before transformation begins.

  • Epicor UD fields and BPMs require schema-aware import handling

    Epicor Kinetic stores a significant portion of customer-specific data in User-Defined (UD) fields and custom Business Objects (BOs) that extend the base schema. When migrating data from Sage into Epicor, UD field tables must be created in Epicor before data loads begin, and BPMs (Business Process Management rules) may fire on record insert, potentially blocking or redirecting imported records. We coordinate schema creation for all UD tables and disable or adjust BPM triggers during the import window, then re-enable them post-migration for production use.

  • Inventory with lot/serial tracking and multi-bin requires warehouse setup first

    Sage 100cloud inventory with lot/serial tracking and multi-bin warehouse structures maps to Epicor's warehouse, bin, lot, and serial number configurations. Epicor requires warehouse codes, bin locations, and lot-numbering sequences to be defined before Part records that use those settings can be inserted. We export Sage warehouse codes and bin locations during discovery, create the corresponding Epicor Warehse and WarehseBin records first, then load Part records with the correct stocking warehouse assignment. Lot and serial number prefixes from Sage map to Epicor Part Lot Forms configuration.

  • Sage custom UDFs have no standardized export path and require manual re-entry

    Sage 100cloud stores user-defined fields in module-specific extension tables whose schema varies by company database and is not exposed through any standard export utility. The Business Objects Information (BIE) data views do not include UDF columns by default. We identify every UDF during discovery by querying the database schema for non-standard column names per module, export them to a sidecar CSV, and flag them for manual re-entry in Epicor Kinetic UD fields. This is customer-visible work that must be planned and budgeted before migration.

  • Partially-received POs must be scoped for business decision before migration

    Sage 100cloud PO_PurchaseOrder records frequently contain partial receipts already applied to inventory — a purchase order for 100 units where 60 have already been received is common in operational databases. Epicor expects PO lines to reflect the open quantity rather than the original quantity when receipts have been recorded. We flag partially-received POs during scoping so the customer decides whether to export the PO as an open document (original quantity) or as a closed/received document (remaining quantity). This decision affects inventory valuation reporting in Epicor.

Migration approach

Six steps for a successful Sage 100cloud to Epicor Prophet 21 data migration

  1. Discovery and source SQL schema audit

    We audit the Sage 100cloud database across every module: GL Account Master, AR Customer, AP Vendor, IC Item, IC BOM, Open AR Invoice, Open AP Invoice, FA Asset, SO Sales Order, PO Purchase Order, and JC Job. We identify the SQL Server instance and database name, verify read-only access credentials, enumerate the Sage company codes, and map the BIE data views to the underlying physical tables. We also identify UDF columns by scanning each module's schema for non-standard column names and build the sidecar export list. The discovery output is a written data inventory, row-count estimates per table, and a source SQL access confirmation.

  2. Destination schema design in Epicor Kinetic

    We design the Epicor Kinetic destination schema using the REST API or through direct configuration. This includes provisioning warehouse codes and bin locations, configuring lot and serial number formats, setting up Part classes and stocking UOMs, creating GL account segments, and defining customer and supplier records with payment terms. UD field tables are created for every Sage UDF identified during discovery. BOM structures and revision levels are mapped to Epicor PartRev records. All schema creation happens in a non-production Epicor environment for validation before any data loads begin.

  3. Sandbox migration and reconciliation

    We run a full migration into an Epicor non-production or sandbox environment using production-like data volume. The customer's operations lead reconciles record counts for each object class (customers in, vendors in, parts in, open invoices in), spot-checks 25-50 records per object against the Sage source for field-level accuracy, and validates BOM hierarchies and lot/serial number continuity. Any mapping corrections — including GL account code format, customer number length, or part number character restrictions — are documented and corrected here. The customer signs off the schema and mapping before production migration proceeds.

  4. Company and vendor code reconciliation

    We extract every distinct Sage customer code, vendor code, and GL account code referenced across all transactional tables and match them against the Epicor destination codes. Epicor's key field lengths and character restrictions differ from Sage — customer codes in Epicor Kinetic are typically limited to 20 characters, GL account codes to the configured segment length. Any codes that exceed Epicor limits are truncated per a documented truncation rule, and the customer approves the remapped code list. Reconciliation reports are shared with the customer before each production load phase begins.

  5. Production migration in dependency order

    We run production migration in record-dependency order: Warehouses and bins (inventory locations), GL accounts, Customers, Suppliers, Parts with BOM and revision levels, Fixed Assets, Open AP Invoices, Open AR Invoices, Sales Orders, Purchase Orders, and Job Costing records. Each phase emits a row-count reconciliation report before the next phase begins. Epicor Kinetic REST API calls are throttled with exponential backoff; bulk loads use the Data Management Tool with validation enabled. We freeze Sage 100cloud write access during the final production migration window and run a delta migration of any records modified during cutover.

  6. Cutover, validation, and handoff

    After production migration, we run post-load validation queries against Epicor Kinetic to confirm record counts, open balance totals for AR and AP, and GL trial balance reconciliation against the Sage source. We deliver the UDF sidecar CSV with re-entry instructions and the automation inventory document listing every Sage workflow and automation requiring rebuild in Epicor Kinetic BPM or the Epicor Business Process Management tool. We support a one-week post-cutover window for reconciliation issues. We do not rebuild Sage workflows or automations as Epicor BPMs inside the migration scope; that work is a separate engagement.

Platform deep dives

Context on both ends of the pair

Sage 100cloud logo

Sage 100cloud

Source

Strengths

  • GAAP-compliant core accounting with integrated bank reconciliation and tax table automation.
  • Multi-warehouse inventory with multi-bin support, lot/serial tracking, and BOM management.
  • Flexible module selection allows businesses to adopt incrementally rather than deploying the full suite at once.
  • Job costing and project cost tracking built natively into the ERP for project-based businesses.
  • Strong partner ecosystem with certified Sage Business Partners offering implementation and support.

Weaknesses

  • No public REST API for live transactional data — all data extraction requires SQL access or third-party middleware.
  • Legacy MAS 90/200 codebase limits UI modernization and slows workflow automation improvements.
  • Frequent software glitches and performance degradation reported across G2 and Capterra reviews.
  • High and increasing subscription costs with module-gated features that inflate the total cost of ownership.
  • Limited native integrations with modern CRMs, e-commerce platforms, and analytics tools.
Epicor Prophet 21 logo

Epicor Prophet 21

Destination

Strengths

  • Purpose-built for wholesale distribution with industry-specific replenishment, kitting, and counter-sale workflows out of the box.
  • Multi-warehouse management with bin locations, cross-docking, and real-time inventory visibility across all warehouse locations.
  • Automated replenishment engine with demand-based and min-max planning reduces stockouts and overstock carrying costs.
  • AI-infused reporting via Epicor Prism provides Gen AI-driven insights into ERP data without requiring a BI team.
  • Strong customer retention at 90% and a 50-year track record in the distribution vertical provides long-term vendor stability.

Weaknesses

  • High total cost of ownership — per-user pricing of $150-200/month plus $10K-$500K implementation creates significant budget commitment for small and mid-market distributors.
  • Customization via SDK requires technical expertise and introduces upgrade risk when custom code conflicts with new P21 releases.
  • Report generation performance is a known pain point — multiple users report system freezes during large or complex report exports.
  • Third-party bolt-on reliance for functionality that competitors include natively increases integration complexity and total solution cost.
  • Limited public API documentation — developers building custom integrations report difficulty finding P21 API authentication methods and endpoint specifications.

Complexity grading

How hard is this migration?

Standard ERP migration. 3 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 Sage 100cloud and Epicor Prophet 21.

  • Object compatibility

    B

    3 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

    Sage 100cloud: 100 req/min per company; 5,000 req/day per company; 20 failed login attempts per hour before 24-hour lockout.

  • Data volume sensitivity

    B

    Sage 100cloud doesn't expose a bulk API — REST + parallelization used for high-volume runs.

Estimator

Estimate your Sage 100cloud to Epicor Prophet 21 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 Sage 100cloud to Epicor Prophet 21 data migrations

Answers to the questions buyers ask most during Sage 100cloud to Epicor Prophet 21 migration scoping. Not seeing yours? Book a call.

Can't find your answer?

Walk through your Sage 100cloud to Epicor Prophet 21 migration with a real engineer — 30 minutes, free, written quote within 24 hours.

Book a free 30 minute consultation

Data migration work — extraction, transformation, and loading — typically runs eight to twelve weeks for scoped migrations under 50,000 customer and vendor records with no multi-level BOM and a single warehouse. Full Epicor ERP implementations including configuration, testing, and go-live run sixteen to twenty-four weeks according to industry project data. On-premise to cloud Epicor migrations for mid-market manufacturers cited in consulting references range from twelve to twenty-four months for complete implementations including infrastructure setup and staff training.

Adjacent paths

Related migrations to explore

Ready when you are

Move from Sage 100cloud.
Land in Epicor Prophet 21, intact.

Tell us record counts and timeline. We'll come back with a written quote inside 1 business day — no commitment, no sales pitch.

Accuracy guarantee Rollback included Quote in 1 business day