Migrate from Sage 500 to Acumatica

Sage 500 customer records map 1:1 to Acumatica Customers. We preserve the customer ID as an alternate ID field for traceability. Sage 500's CustomerClass code maps to Acumatica's CustomerClass as a reference lookup — no value transformation required unless your Sage class codes exceed Acumatica's character limit.

Sage 500 vendor records map to Acumatica Vendors with the same direct mapping approach. Sage's vendor payment terms and 1099 flag translate to Acumatica's Terms and Tax Agency fields. We validate that Sage vendor addresses exist in Acumatica's address table before linking.

Sage 500's segmented chart of accounts (segment1–segment5) requires decomposition. The first active segment becomes the Acumatica Account record with the full Sage account number stored in AccountCD. Subsequent segments generate Subaccount records with a configurable mask — your Sage GL administrator defines the segment-to-subaccount mapping before migration.

Sage 500 subaccount codes (typically segment2–segment5) map to Acumatica Subaccount records. We preserve the Sage subaccount description and create a subaccount mask matching your reporting dimensions. Inter‑company elimination subaccounts receive a special flag in Acumatica for consolidation setups. During the import, each subaccount links to its parent Account record using the account identifier from the GL mapping phase, ensuring that posting dimensions align correctly in Acumatica's ledger.

Sage 500 inventory items map to Acumatica stock items with the same item ID. Valuation method (Standard/Average/FIFO/LIFO) transfers as Acumatica's ValuationMethod field. We read the IC_CostTier table to build Acumatica's cost layer records at migration time, preserving standard cost history.

Sage 500 bills of materials (BOM) and bills of operations (BOO) map to Acumatica's BOM with line items and operation steps. Sage BOM comments and engineering notes migrate as BOM revision descriptions. Multi-level BOMs resolve parent-to-child relationships through iterative import ordering.

Sage 500 open AR invoices map to Acumatica ARInvoice records with original invoice dates preserved. Applied payments map to Acumatica Payments linked by customer and invoice reference. Historical (paid) invoices migrate as read‑only records with their payment applications preserved. All documents retain their original document numbers to support audit traceability.

Sage 500 AP invoices and payments follow the same pattern as AR — open invoices migrate as live Acumatica APInvoice records, applied payments as Payment records. Prepayments and credit memos map to Acumatica's application‑aware document types. Each AP document inherits the vendor's payment term and 1099 flag from the Sage vendor record, preserving tax reporting settings in Acumatica.

Open Sage 500 sales orders and purchase orders migrate as Acumatica documents in draft or pending status. Closed orders migrate as historical records for audit continuity. Line items inherit the item and warehouse mapping from the inventory migration phase. The migration preserves each order's original order date and requested ship date, ensuring that scheduling and promise-date logic in Acumatica reflects the original commitment.

Sage 500 user-defined fields (UDFs) stored on any table require Acumatica Extender module configuration. We inventory every UDF before migration, create matching custom fields in Acumatica, and map them during the data import pass. UDF data types (date, numeric, string) map to equivalent Acumatica schema types.

Sage 500 user IDs resolve to Acumatica users by email address match. Sage's role‑based permissions require manual reconstruction in Acumatica's access control screens — we provide a role‑mapping worksheet to your Acumatica administrator. During the mapping process, we also capture each user's default branch assignment and notification preferences to replicate Sage's environment settings in Acumatica.