ERP IMPLEMENTATION GUIDE

How do you implement ERP? From data to daily operations.

ERP implementation is more than installing software. Processes, data and users are prepared against one plan, then the tested system moves into live use through a controlled transition.

Project team reviewing an ERP implementation plan and process records at a manufacturing business
Business and implementation teams: shared scope, clear responsibilities and verified outcomes.
START WITH A CLEAR SCOPE

What does ERP implementation include?

Technical setup prepares the environment where the software runs. Implementation makes inventory, purchasing, sales, production and accounting work correctly within it. Judge readiness by validated data, appropriate permissions and completed business scenarios, not just whether the program opens.

Cloud ERP implementation

Users can access the application through a browser; hosting and operational responsibilities depend on the agreement. Company, location, permissions, data and process preparation still matter. A free trial account and a full business rollout are not the same task.

On-premises ERP implementation

Plan servers, operating system, database, network, security, backups and updates separately. Verify technical requirements for the chosen product and version; one hardware specification cannot apply to every ERP system.

A SEVEN-STAGE IMPLEMENTATION PLAN

ERP implementation stages and their deliverables

This sequence is a planning framework. Some work may run in parallel or begin with a pilot, depending on the business. The transition decision should rely on verified deliverables.

  1. Define the scope and project team

    Write down the problem to solve first: inventory accuracy, order tracking, production planning or finance records. Define modules, companies, locations, integrations, exclusions and decision authority. Each department should nominate a key user responsible for its process.

    Owner
    Business project owner and department managers
    Deliverable to verify
    Approved scope, named owners and acceptance criteria
  2. Prepare the environment and access

    Agree on cloud or on-premises deployment. Verify user access, network connectivity, devices, backups and service responsibilities. Separate testing from live records; do not perform uncontrolled development or trials on production data.

    Owner
    IT owner and implementation team
    Deliverable to verify
    Verified access, environments and responsibilities
  3. Clean the data and run a trial migration

    Define migration scope for item and customer/supplier records, units, bills of materials, prices, opening balances and open transactions. Resolve duplicates and missing fields. Run a trial migration and compare record counts, totals and relationships with the source. Plan access to and retention of historical records separately.

    Owner
    Data-owning departments and migration team
    Deliverable to verify
    Field mapping, issue list and validated trial data
  4. Configure workflows, permissions and integrations

    Configure companies, warehouses, cash accounts, chart of accounts, prices and approvals to match business processes. Test viewing, editing and approval permissions separately. For e-document, e-commerce and device integrations, check errors, retries and result records as well as data transmission.

    Owner
    Process owners, IT and implementation team
    Deliverable to verify
    Approved configuration, access matrix and integration test results
  5. Run acceptance tests using real business scenarios

    Trace a customer order through inventory, dispatch, invoicing and accounting. In manufacturing, also test bills of materials, material consumption, scrap and finished-goods receipt. Include returns, cancellations, shortages and unauthorised actions. Do not approve go-live while critical issues lack an owner and evidence of closure.

    Owner
    Key users and department owners
    Deliverable to verify
    Scenario-based acceptance records and closed critical issues
  6. Train users around their actual tasks

    Go beyond a screen tour. Have warehouse staff perform receipts, sales staff enter orders and production staff handle work orders using their own examples. Include shifts, new starters and backup users. Observe whether users can carry out daily tasks independently and prepare short task guides.

    Owner
    Training owner and key users
    Deliverable to verify
    Role-based training, observed practice and task guides
  7. Go live and monitor the initial operating period

    Document the final data cut-off, transaction pause and opening checks. Agree who decides to postpone the transition or consider a rollback and under which conditions. Monitor orders, inventory and finance records on day one, then closing and reporting outcomes. Log support requests with priority and ownership.

    Owner
    Project manager, business owner and support team
    Deliverable to verify
    Go-live approval, verified opening records and support tracking
TRACE A TRANSACTION END TO END

Is migration complete, or has a file merely been uploaded?

Test record relationships using a sample customer order. Matching the total inventory count alone is not enough: units, warehouses, reservations, prices and customer account links must also work correctly.

  1. OrderCorrect item, unit, price and customer; required approval.
  2. Inventory and dispatchCorrect quantity and warehouse; lot/serial and return checks.
  3. Invoice and accountOrder/dispatch relationship, document total and account transaction.
  4. Reporting and closingTraceability to source documents, balances and period checks.

In manufacturing, add work orders, bills of materials, material consumption and finished-goods receipts. This is a testing framework, not a claim that every step is automated in every product.

What determines ERP implementation time?

Start with decisions and dependencies that can cause delays rather than a promised number of days. Setup duration, go-live date and initial support period are separate planning items.

Data readiness

Duplicate records, missing units and unexplained balances delay trial migration. Assign a data owner and correction date.

Scope and integrations

Modules and integrations added late affect testing and training. Record each change with its impact and approval.

Team availability and decisions

Key users need time away from daily work for the project. Pending business decisions can also block technical work.

Acceptance and cutover conditions

Do not go live merely to meet a date before critical issues, opening checks and day-one support coverage are resolved.

Six checks before go-live

Scope and ownership

Are processes, owners and acceptance authority documented?

Data validation

Have data owners approved master records, open transactions and balance checks?

Access and security

Have user roles and unauthorised-action scenarios been tested?

End-to-end acceptance

Have critical scenarios and integration issues been resolved?

Training and shifts

Is there a trained user for each task and shift?

Cutover and support

Are final migration, opening checks, postponement/rollback decisions and support ownership agreed?

Frequently asked questions about ERP implementation

How long does ERP implementation take?

There is no single duration for every business. Modules, locations, data quality, integrations, customisation and user availability all matter. Build the schedule around deliverables and acceptance points after reviewing scope and sample data.

Does cloud ERP require no implementation?

Browser access can remove the need to install software on each user’s computer. Company setup, permissions, data migration, process configuration, testing and training still remain. Opening an account is not the same as being ready for live operations.

Must all data from the old system be migrated?

Migrating every record should not be an automatic objective. Define master data, open transactions and opening balances needed for daily work, and assess historical access and retention separately. Document records excluded from migration as well.

Must production stop during an ERP transition?

A complete shutdown is not mandatory in every project, but some records and transactions may need a controlled cut-off during final migration. Plan any pause, pilot or phased rollout around ongoing production, shifts and critical dispatches. Do not assume a disruption-free transition in advance.

What is the business responsible for during implementation?

The business must identify process decision-makers, data owners, key users and acceptance authority. The software team can configure the system but should not assume correct balances, bills of materials or approval rules on the business’s behalf. Agree responsibilities and service scope in writing at the outset.

What is included in ERP implementation cost?

Analysis, migration, customisation, integrations, training, go-live and support depend on the proposal and contract. Do not assume the licence or subscription covers all services; list inclusions and exclusions separately.

Guides that support your implementation plan

DEFINE YOUR IMPLEMENTATION SCOPE WITH US

Plan the move from your current system

Share your user and location counts, current software, sample migration data and priority business processes. The appropriate product, service scope and transition plan are defined after a needs assessment.

Korgün Cloud ERP for cloud-based operations and KG Palaimon for on-premises manufacturing are assessed separately. A single deployment model is not recommended for every business.

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