25 years Navision expertise

Business Central Migration
by Specialists

Secure. Fast. Successful.
Your Dynamics NAV/Navision Migration in Expert Hands

100+
Successful Migrations
25
Years of Experience
Global
DE ยท UK ยท SG ยท CN

Trusted by medium-sized companies in almost all industries

100% Data Security

Your data in safe hands

Minimal Downtime

Your business keeps running

Transparent Planning

No hidden costs

100+

Successful Migrations

25 Years

Navision Expertise

International

DE, UK, SG, CN

100%

NAV/BC Focus

The Reality

Do You Know These Challenges?

A Dynamics NAV to Business Central migration is complex. These typical problems often lead to delays, cost overruns, and frustration:

Data Migration Chaos

Decades-old data, inconsistent formats, missing data integrity โ€“ data migration becomes a nightmare.

Legacy Code Problems

Your C/AL customizations don't work in Business Central. AL conversion is expensive and time-consuming.

Integration Nightmare

Your third-party systems, CRM, and e-commerce platforms stop working after migration โ€“ business stands still.

Exploding Costs

Unplanned additional costs due to unexpected problems, hidden complexity, and lack of experience blow your budget.

User Resistance

Your employees are frustrated with the new interface. Productivity drops, error rate increases.

Cloud Uncertainty

On-Premise to Cloud: Is your infrastructure ready? What happens to your data security and performance?

Time Pressure & Delays

The project takes twice as long as planned. Your business suffers from endless delays.

Security Risks

Data loss fears, security gaps during migration, missing compliance โ€“ a risk for your company.

You don't have to master these challenges alone.
With the right expertise, your migration will be successful.

Discover Our Solution
Your Solution

Why decoso Is Your Ideal Migration Partner

We live and breathe Navision, Dynamics NAV, and Business Central for 25 years. This unique specialization makes all the difference.

Deep Code Understanding of All Versions

We know every corner and almost every line of code โ€“ from the oldest Navision versions to the latest Business Central. This knowledge is the key to a secure migration without unpleasant surprises.

Minimal Downtime Risk

With our proven parallel operation methodology, your business continues running during migration. We've completed over 100 projects without significant downtime.

Transparent Project Planning

No hidden costs, no surprises. You receive a detailed project plan from the start with clear milestones, timeframes, and cost breakdown.

Proven Migration Methodology

Our 8-phase methodology has been perfected over 25 years and validated in 100+ projects. From initial analysis to post-migration support โ€“ everything is structured and well thought out.

International Expertise

We have successfully completed migrations in Germany, UK, Singapore, and China. Different languages, country versions, and compliance requirements? No problem for us.

Personal Support

Elvis Schmidt and Marc Hermann personally lead your project. You get real experts, not junior consultants. Direct communication, fast decisions.

The decoso Promise

"We only do Navision, Dynamics NAV, and Business Central โ€“ the entire business life across all versions. This absolute specialization enables us to master every challenge and lead your migration to success."

Elvis Schmidt & Marc Hermann
Managing Directors, decoso GmbH & Co. KG
Our Process

Successful Migration in 8 Proven Steps

Our structured approach guarantees a smooth migration without unpleasant surprises.

01

Analysis & Inventory

We analyze your current NAV environment in detail: database size, customizations, integrations, business processes. You receive a complete migration report with recommendations.

  • System Inventory
  • Code Analysis
  • Data Audit
  • Risk Assessment
02

Migration Strategy & Planning

Together we develop the optimal migration strategy. Cloud or On-Premise? Big Bang or phased migration? We create a detailed project plan with milestones.

  • Strategy Workshop
  • Detailed Project Plan
  • Resource Planning
  • Budget Calculation
03

Data Cleansing & Mapping

We cleanse your data from duplicates and legacy issues. Subsequently we create precise mapping for error-free transfer to Business Central.

  • Data Cleansing
  • Field Mapping
  • Validation Rules
  • Archiving Strategy
04

Code Modernization & Testing

Your C/AL customizations are professionally converted to AL and modernized. We use best practices and test every function extensively in a sandbox environment.

  • AL Conversion
  • Code Refactoring
  • Extension Development
  • Comprehensive Testing
05

Parallel Operation & Validation

Business Central runs parallel to your NAV system. This allows you to test and validate in peace, while your business continues normally. Zero risk, maximum security.

  • Parallel Testing
  • User Acceptance Tests
  • Performance Optimization
  • Process Validation
06

Go-Live & Stabilization

The big day: We perform the final data transfer and switch to Business Central. Our team is on-site or remote to monitor every step.

  • Final Data Transfer
  • System Cutover
  • Live Monitoring
  • Immediate Support
07

Post-Migration Support

After go-live, we remain at your side. Intensive support in the first weeks to immediately resolve every small issue and implement optimizations.

  • Hyper-Care Phase
  • Issue Resolution
  • Performance Tuning
  • Documentation
08

Training & Knowledge Transfer

Your employees become Business Central experts. Role-based training, best practice workshops, and comprehensive documentation ensure sustainable success.

  • Key User Training
  • End User Training
  • Admin Training
  • Documentation Handover

Ready for Your Migration?

Let's discuss your project and create an individual migration plan.

Schedule Consultation
Project Request

Start Your Business Central Migration

Share the key details of your project with us. We will respond within 24 hours with an initial assessment and consultation offer.

Company Details

Technical Details

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Additional Information

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Direct Contact

Prefer to speak personally?
Call us or send an email.

Response Time

We know your time is valuable.

  • Response within 24h
  • Free initial consultation
  • Non-binding offer

Our Location

decoso GmbH & Co. KG
Sattlergasse 1/1
88471 Laupheim
Germany

Current Capacity Available!

We currently have available capacity for new migration projects. Take advantage of the opportunity for a quick project start!

Frequently Asked Questions

Everything You Need to Know About Business Central Migrations

The most important questions and answers about your NAV to Business Central migration

The duration depends on several factors: database size, number of customizations, complexity of integrations, and chosen migration strategy. Typical timeframes:

System Size Users Customizations Timeframe
Small 1-10 Few 4-8 weeks
Medium 10-50 Moderate 2-4 months
Large 50+ Extensive 4-8 months

In the free initial analysis, we provide you with a precise estimate for your specific project.

Costs vary greatly depending on project scope. Main cost factors are:

  • Number of users and Business Central licenses
  • Scope of code modernization (C/AL to AL)
  • Data volume and cleansing effort
  • Integrations with other systems
  • Training scope
  • Cloud vs. On-Premise

As a guideline: Simple migrations start at around EUR 15,000, while complex enterprise migrations can cost EUR 50,000-150,000 or more. Contact us for a customized quote.

We migrate all Dynamics NAV versions to Business Central:

  • Navision Financials 1.0 - 4.0
  • Dynamics NAV 2009, 2013, 2015, 2016, 2017, 2018
  • Business Central 13-25 (all versions)

Even very old Navision versions can be migrated. Our 25 years of experience enables us to handle legacy code and outdated data structures professionally. We have successfully completed migrations from Navision 3.7!

Both options have advantages and disadvantages. We provide neutral advice:

Business Central Cloud (SaaS):
  • โœ“ No IT infrastructure needed
  • โœ“ Automatic updates
  • โœ“ Scalable and flexible
  • โœ“ Access from anywhere
  • โœ— Fewer customization options
  • โœ— Ongoing monthly costs
Business Central On-Premise:
  • โœ“ Full control over data
  • โœ“ Extensive customizations possible
  • โœ“ One-time license costs
  • โœ— IT infrastructure required
  • โœ— Manual updates

For most SMEs, we recommend the cloud variant. We analyze your specific requirements and recommend the optimal solution.

Data security is our highest priority. Our security measures:

  • Multiple Backups: Before, during, and after migration
  • Encrypted Data Transfer: SSL/TLS for all transfers
  • Parallel Operation: Your NAV system continues running until BC is 100% functional
  • Validation Processes: Automatic and manual data checks
  • Rollback Strategy: Quick return to old system possible
  • GDPR Compliant: All processes comply with EU data protection

In over 100 migrations, we had zero data loss incidents. Your data is in safe hands with us.

Yes, in most cases customizations can be migrated, but:

  • Code modernization required: C/AL must be converted to AL
  • Best practice review: We check if customizations are still current
  • Use standard features: Often old customizations are now standard functions
  • Optimization opportunity: Migration is ideal for modernizing outdated code

Our approach: We analyze each customization and recommend whether conversion, modernization, or replacement with standard features makes sense. This saves you maintenance costs long-term and leverages full BC capabilities.

Minimal downtime is our promise. Our strategies:

  • Parallel Operation: BC runs parallel to NAV during the test phase
  • Weekend Cutover: Final switch outside business hours
  • Phased Migration: Optional by department or location
  • Extensive Preparation: All tests completed beforehand
  • Quick Rollback Option: In case problems occur

Typical downtime during final cutover: 4-8 hours on weekend. Your daily business is not affected.

Good preparation is the key to success. We recommend these steps:

  • Data Cleansing: Archive old, unnecessary data
  • Process Review: Document and question business processes
  • Customization Inventory: List of all custom code and extensions
  • Integration Overview: Identify all connected systems
  • Define Key Users: Contact person for each department
  • Change Management: Prepare team for change

Don't worry โ€“ we guide you through all preparation steps with checklists, workshops, and hands-on support.

Historical data can be handled differently:

  • Complete Migration: All data is transferred (for small DBs)
  • Selective Migration: Only relevant periods (e.g., last 3-5 years)
  • Archiving: Old data is archived but remains accessible
  • Hybrid Approach: Active data in BC, archive in NAV (read-only)

Important: Legal retention periods (10 years for tax-relevant data in DE) must be observed. We develop a compliant archiving strategy for your specific requirements.

Our structured training concept ensures quick productivity:

Key User Training (before Go-Live):
  • Intensive 2-3 day training
  • All core functions and processes
  • Hands-on in training environment
End User Training (shortly before/after Go-Live):
  • Role-based training (e.g., accounting, purchasing, sales)
  • 1-2 days per role
  • Focus on daily tasks
Post-Go-Live Support:
  • Helpdesk for questions
  • Refresher workshops after 4-6 weeks
  • Video tutorials and documentation

Our unique specialization makes the difference:

  • 100% Focus: We do ONLY Navision/NAV/Business Central โ€“ for 25 years
  • Deep Code Knowledge: We know almost every program code of all versions
  • 100+ Projects: Extensive migration experience in all industries
  • International: Successful projects in DE, UK, Singapore, China
  • Personal Support: Managing directors personally lead your project
  • Transparency: No hidden costs, clear communication
  • Long-term Partnership: At your side even after go-live

Other service providers "also" do NAV/BC. We do only that โ€“ and that makes us the best partners for your migration.

Yes, comprehensive post-migration support is part of our service:

  • Hyper-Care Phase: Intensive support in first 4-8 weeks after go-live
  • Helpdesk: Quick answers to questions and issues
  • Performance Monitoring: System monitoring and optimization
  • Long-term Support: Maintenance contracts for continuous support
  • Further Development: New features and customizations
  • Version Updates: Support for future BC updates

We see ourselves as a long-term partner, not just as a migration service provider. Your success with Business Central is our success.

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