Sage 50 and Ramp integration

What moves between them

The main flow runs from Sage 50 into Ramp. Vendors and their payment terms are read from Sage 50 and synchronized into Ramp's vendor master, while open and posted purchase invoices from Sage 50 are mapped to Ramp bills and allocated to Sage 50's GL accounts and cost centers for spend visibility. GL account master data is read in both directions so Ramp bills always post to accounts that exist in Sage 50. Purchase order history can also be synced for a complete audit trail. Because Sage 50 has no push capability, ml-connector polls on a schedule you control, typically every 5-15 minutes for near-real-time sync.

How ml-connector handles it

ml-connector runs a Windows process with access to the Sage 50 company files (either local or on a shared network path) and authenticates using the stored Sage 50 user credentials. It polls Sage 50 SDK or SDO for vendors and invoices modified since the last run, using LastModifiedDate or AuditTrail, and transforms them into Ramp vendor and bill entities. Ramp OAuth2 tokens are refreshed before expiry at the 10-day mark. Each vendor is looked up in Ramp first; new vendors are created via the Ramp API. Each bill is mapped to the Sage 50 GL account and cost center so finance can analyze spending by dimension in Ramp. The integration tracks which Sage 50 vendor ID and invoice number were synced to Ramp, so duplicate runs do not create duplicate bills. Every vendor, bill, and GL posting carries a full audit trail with the source transaction ID, timestamp, and any transformations applied.

A real-world example

A mid-sized manufacturing company runs Sage 50 US Edition for accounting and uses Ramp for corporate card and bill-pay management across three regional offices. Before the integration, accounts payable clerks received vendor invoices, entered them into Sage 50, and then re-keyed the same invoices into Ramp for payment and expense visibility. Cost center allocation was manual on each side, leading to mismatches between what Sage 50 recorded and what Ramp approved for payment. With Sage 50 and Ramp connected, new vendors and invoices in Sage 50 flow automatically into Ramp, pre-allocated to the correct cost center and GL account. Payment approvers in Ramp see accurate GL coding from day one, and the accounting team has one less manual step in the invoice entry cycle.

What you can do

• •Sync vendor master data from Sage 50 into Ramp, including name, payment terms, and contact information.
• •Move open and posted purchase invoices from Sage 50 into Ramp as bills, pre-allocated to the correct GL account and cost center.
• •Keep Sage 50 GL accounts in sync with Ramp so every bill posts to an account that exists in both systems.
• •Poll Sage 50 on a configurable schedule (5-15 minutes recommended) and authenticate Ramp via OAuth2 Client Credentials with automatic token refresh.
• •Maintain a complete audit trail linking every Ramp bill back to its source Sage 50 vendor ID and invoice number for reconciliation and replay on failure.

Questions

Does the integration work with both Sage 50 US and UK editions?

Yes. ml-connector supports both Sage 50 US (via .NET SDK with ApplicationID and CompanyPath) and Sage 50 UK (via Sage Data Objects / SDO COM layer). Both authenticate with Windows username and password and expose vendors, invoices, and GL accounts through their respective SDK interfaces. The polling logic adapts to whichever edition is configured.

How does ml-connector handle the Sage 50 SDK requirement for exclusive access and no cloud REST API?

ml-connector runs a Windows integration server process with direct access to the Sage 50 company data files (local or network-shared). It polls Sage 50 SDK or SDO for modified records using LastModifiedDate or AuditTrail rather than pushing, and stores Ramp OAuth2 tokens securely so each poll cycle refreshes credentials before expiry. The integration user is never logged into Sage 50 interactively during polling.

Which direction does data move between Sage 50 and Ramp?

The main flow is Sage 50 into Ramp. Vendors, purchase invoices, and GL accounts move from Sage 50 into Ramp for spending visibility and policy enforcement. GL account and cost center dimensions are aligned in both directions so Ramp bills always post to valid Sage 50 accounts. Sage 50 is the system of record for vendor master and invoice history.