ERP Migration: SAP, Oracle and Tally to Custom ERP.
Stop paying the yearly bill without stopping the business.
Drema AI migrates companies from SAP, Oracle, Tally, Busy, Marg, Zoho, NetSuite and ageing in-house systems to a custom ERP they own. Migration is phased: operations move first, finance last, with both systems run in parallel through at least one closing. Historical data is archived in a searchable, read-only form so that licences on the old system can be allowed to lapse.
Custom ERP development with one year of free maintenance
Pay once for development. No per-user licence and no yearly subscription, and the first year of AMC is on us.
- One-time development cost
- 1 year AMC free
- No per-user licence
- You own the source code
Stop paying the yearly bill without stopping the business.
What usually
goes wrong.
The annual maintenance invoice arrives every April. Half the named users rarely log in. The shop floor keeps spreadsheets beside the ERP because simple changes need a consultant. An upgrade quotation has arrived that costs nearly as much as the original implementation.
Everything that ships
with this work.
Not a menu to choose from. Each piece is here because leaving it out is what makes this kind of project fail six months later.
Usage and cost audit
What you pay each year, which transactions and reports are genuinely used, and what runs outside the system in spreadsheets.
Stay-or-move recommendation
An honest assessment. Where a group mandate, audit expectation or real breadth of use favours staying, we say so.
Data migration
Masters, open orders, stock and outstanding moved with reconciliation; opening balances verified and signed off.
History archive
Past transactions and documents kept read-only and searchable for statutory retention periods, without live licences.
Interfaces preserved
Customer EDI, label formats, bank files, e-invoicing and statutory reports reproduced exactly so outsiders see no change.
Parallel run
Both systems operated together with daily reconciliation until a month-end closes cleanly.
The order matters more
than the tools.
Most of what separates a project that lands from one that stalls is sequence. This is the order we work in, and why each step comes where it does.
- 01
Audit
Costs, usage, customisations and integrations of the current system documented in two to three weeks.
- 02
Operations first
Production, stores, dispatch or sales, wherever the old system fits worst, moves to the new ERP while finance stays put.
- 03
Bridge
During transition the new system posts summarised entries to the old one so books stay complete.
- 04
Finance
Moved at a quarter or year boundary with auditors involved.
- 05
Archive and retire
Old data extracted and archived; renewals stopped.
Where this gets
put to work.
The situations this service is built for. If one of these sounds like your problem it is worth a conversation — and if none of them do, say so on the call and we will point you at what would actually fit.
SAP Business One and ECC
Mid-sized companies using a narrow slice of SAP and facing licence, maintenance or S/4HANA conversion costs.
Tally, Busy and Marg
Growing firms that need production, job work, mobile access and multi-branch control beyond accounting software.
Zoho and NetSuite
Scale-ups whose per-seat subscription and integration costs now exceed the cost of owning the system.
Legacy in-house ERP
Unsupported desktop systems on old databases, known to one person, with no mobile or API access.
Have a use case that is not on this list? That is usually the interesting one.
Chosen to fit,
not to impress.
We pick tools that suit the problem and that your team can maintain after we hand over — never to pad a capability list.
Questions we
get asked.
Straight answers, including the ones that talk you out of work we would otherwise be paid for.
How much does a company typically save by leaving a packaged ERP?
It depends on user count and how much of the product you use. The recurring items to total are licences or subscriptions, annual maintenance, hosting, partner support and change requests. Our cost is a single development fee with the first year of AMC free, so the comparison should be made over five to seven years.
Will we lose our historical data?
No. Open items migrate into the new system. History is archived in a read-only, searchable form for the retention period your auditors and regulators require.
Can we migrate without stopping dispatch or billing?
Yes. Cut-over is done at a weekend or month start with documents already tested, and the old system stays available read-only. Operations move in stages rather than all at once.
Our customers require SAP. Can we still move?
Customers usually require outputs such as EDI messages, labels, traceability and timely delivery, not a specific product inside your company. Where a contract or group policy does mandate SAP, we advise staying.
What about regulated industries such as pharma?
Migration is handled as a validated change: user requirements, qualification documents, verified data migration and QA approval at each step, with audit trails of the old system retained.
What do we pay after migration?
Nothing for the first year of AMC. After that, support is by annual contract or on request, at your choice. There are no user licences.
Talk it through with a founder.
Bring the actual problem. You will get a straight answer on whether erp migration: sap, oracle and tally to custom erp is the right approach
— including when it is not.
