Move off your AS/400 one call stream at a time Every rule written down first, and every new program proved against the old
Damco reads your RPG and writes each rule in plain words. Then we move one call stream at a time (every program one business task calls, start to finish), proved against the IBM i's own records.
ORD100RTakes the orderOn the IBM iCUS200RChecks creditMoved and provedPRC300RPrices each lineMoved and provedINV400RAllocates stockOn the IBM i
ORDHDRORDDTLCUSMSTWhat still runs on your AS/400, department by department The jobs people do on green screens every day, and what each costs them
- Finance
GLMNU 4, 7, 11GL posting, receivables aging, month-end reportsThe close waits on one batch job, and the one person who reruns it - Order desk
ORDMNU 1, 2, 5Order entry, price overrides, credit holdsNew hires spend weeks learning the screens before they take an order - Warehouse
WHSMNU 3, 4Pick lists, stock moves, cycle countsPick lists are printed at seven and are out of date by nine - Purchasing
PURMNU 1, 6Purchase orders, supplier lookupsSupplier confirmations arrive as PDFs and are keyed in by hand - Customer service
CSRMNU 2Order status, returnsCustomers wait on hold while three screens are checked - IT
Nightly batchRPG changes, CL jobs, file transfersEvery change waits on the two people who know the code
Four routes for your AS/400, and the stops each skips AI is proven at reading old code, not at converting it end to end
Stays on the IBM iRight when it works and rarely changes. You still need RPG skills to run it.
An IBM i in someone else's data centerYour hardware goes away. The RPG, and the skills problem, stay.
Generated Java nobody wroteFast on paper. Nobody on your team can read the code it produces.
Your new stack, one stream at a timeSlower to start, and every stream is checked against the old system first.
Research: Gartner, October 2026, on AI in legacy modernization.
Call streams move in the order they pay Start with the stream your business changes most, while its experts are still here
- Call streams switched over
- Rules written down and agreed
- Records that match the IBM i
- Programs still on the IBM i
The new program writes the same record as the old Field by field, on months of real orders, before anyone switches over
How RapidIT reads your IBM iORDNO4471209=Order number4471209CUSNO210384=Customer210384ORDDT20261019=Order date20261019PRCLSTB12=Price listB12DSCPCT12.50=Discount12.50CRDHLDN=Credit holdNWHSCDNJ=WarehouseNJORDTOT4318.75=Order total4318.75
- Every rule is written down firstYour people read each rule in plain words and correct the ones the code got wrong.
- Old and new run on the same ordersA stream switches over only when months of real records match.
- The IBM i stays the system of recordUntil you switch a stream over, nothing changes for the people who use it.
- We turn down a big-bang rewriteAnd we won't hand you code from a converter that nobody can read.
Tell us what still runs on your AS/400
We'll map one call stream and write its rules down in five days, and you keep the map either way.