Timesheet Migration FAQ: Frequently Asked Questions on Changing Solutions
Complete answers to the most frequent questions about timesheet software migration. FAQ guide for changing solutions without losing data in 2026.
Discover answers to the most frequent questions about timesheet software migration. This complete FAQ guide helps you prepare and succeed in changing solutions without losing data.
General Migration Questions
Q1: How long does a timesheet migration take?
A: Migration time varies by complexity:
- Simple migration (Excel → Software): 1-2 weeks
- Standard migration (Software A → B): 2-4 weeks
- Complex migration (ERP/Legacy): 1-3 months
The main factor is data volume and the number of integrations to migrate. Good preparation can significantly reduce migration time.
Factors affecting duration:
- Number of consultants (10 vs 100)
- Volume of history to migrate (3 months vs 3 years)
- Integration complexity (none vs 5 integrations)
- Project team availability
See our complete migration guide for a detailed plan.
Q2: Can we migrate during active billing period?
A: Yes, with a transition period (double entry). Ideally migrate at the start of the month to avoid monthly closures.
Recommended strategy:
-
Transition period (1-2 weeks)
- Entry in old system (backup)
- Entry in new system (primary)
- Compare results
-
Progressive validation
- Validate day by day
- Correct gaps quickly
- Communicate results
Benefits:
- ✅ Maximum safety (no data loss)
- ✅ Validation in real conditions
- ✅ Progressive team training
Avoid: Migrating during monthly or quarterly close.
Q3: What if data is lost during migration?
A: With full backups and batch migration, the risk is minimal. If issues occur, restore from backup and correct.
Prevention:
-
Backups before each step
- Full backup of old system
- Backup after each migrated batch
- Keep backups 3-6 months
-
Batch migration
- Migrate in small batches
- Validate after each batch
- Regular restore points
-
Testing in test environment
- Run full migration in test
- Validate all scenarios
- Fix issues before production
If loss occurs:
- Stop migration
- Restore from last valid backup
- Analyze cause
- Correct and restart
Q4: Should we migrate all timesheet history?
A: No, generally 12-24 months is enough. Migrate only the data needed for reporting and billing.
Recommendations by data type:
- Active timesheets: Migrate in full
- Recent timesheets (12-24 months): Migrate for reporting
- Old timesheets (> 24 months): Archive (optional)
- Reference data: Migrate in full (users, projects)
Benefits of limiting history:
- ✅ Faster migration (2-3x)
- ✅ Fewer error risks
- ✅ Lower costs
- ✅ Reduced complexity
Exception: If you need full history for audits or regulatory reporting, migrate everything.
Q5: How to validate that migration succeeded?
A: Compare volumes (number of records), totals (hours, amounts), and test main features.
Validation checklist:
Volumes:
- Same number of users
- Same number of projects
- Same number of timesheets
- Same period covered
Integrity:
- Total hours consistent (± 1%)
- Billed amounts consistent (± 1%)
- Correct dates
- Correct relations (projects-consultants)
Features:
- Creating new timesheet works
- Validating timesheet works
- Data export works
- Report generation works
- Automatic calculations correct (TACE, profitability)
User tests:
- Consultants can enter
- Managers can validate
- Administrators can configure
Technical Questions
Q6: What data formats can be imported?
A: Common supported formats are CSV, Excel (XLSX), JSON, and sometimes XML.
Formats by migration type:
Excel/CSV:
- ✅ Universal support
- ✅ Easy to generate
- ✅ Manual cleaning possible
JSON/XML:
- ✅ Richer structure
- ✅ Better for complex data
- ✅ API supported
Direct API:
- ✅ Automated migration
- ✅ Real time
- ✅ Fewer errors
Pre-migration checks:
- Formats supported by new solution
- Compatible data structure
- Import tools available
- Import documentation available
Q7: Can we migrate from Excel to timesheet software?
A: Yes, it's the simplest migration. Export your Excel data to CSV, clean if needed, then import into the new system.
Steps:
-
Excel export
- Export to CSV
- Check structure (columns)
- Clean data
-
Preparation
- Standardize formats (dates, hours)
- Remove duplicates
- Validate consistency
-
Import
- Use import wizard
- Map columns
- Validate results
Typical duration: 1-2 weeks
Benefits:
- ✅ Simple and fast
- ✅ No technical dependencies
- ✅ Full control over data
Q8: How much does a timesheet migration cost?
A: Costs vary by complexity:
Simple migration (Excel → Software):
- Time: 20-40h
- Internal cost: €1,000 - €2,000
- External cost (if assistance): €2,000 - €5,000
Standard migration (Software A → B):
- Time: 40-80h
- Internal cost: €2,000 - €4,000
- External cost: €5,000 - €15,000
Complex migration (ERP/Legacy):
- Time: 80-200h
- Internal cost: €4,000 - €10,000
- External cost: €15,000 - €50,000
Cost factors:
- Data volume
- Number of integrations
- Workflow complexity
- Need for external assistance
- Team training
ROI: Generally paid back in 6-12 months through productivity gains.
Q9: Should we shut down the old system during migration?
A: No, it's recommended to keep the old system running during the transition period.
Recommended strategy:
-
Transition period (1-2 weeks)
- Old system: Read-only (backup)
- New system: Primary
- Double entry for validation
-
After validation
- Old system: Read-only (archiving)
- New system: Primary
- Progressive deactivation
Benefits:
- ✅ Maximum safety
- ✅ Rollback possible
- ✅ Progressive validation
- ✅ No service interruption
Deactivate only after:
- Full validation of new system
- Team training complete
- Active support available
- Full backups done
Q10: How to migrate existing integrations?
A: Identify all integrations, check if the new solution supports them, then reconfigure.
Steps:
-
Integration inventory
- ERP (SAP, Oracle, etc.)
- Accounting (Sage, Cegid, etc.)
- Billing tools
- Payroll systems
- Calendars (Google, Outlook)
- Development tools (Jira, Git)
-
Compatibility check
- Integrations supported by new solution
- APIs available
- Integration documentation
-
Reconfiguration
- Configure integrations in new system
- Test connections
- Validate data exchange
Complex integrations:
- May require custom development
- Plan this step in advance
- Possible additional budget
Data and Feature Questions
Q11: What about billing data linked to timesheets?
A: Migrate billing data together with timesheets to maintain consistency.
Data to migrate:
- Generated invoices: Amounts, dates, clients
- Hourly rates: Per consultant, per project
- Billing periods: Dates, statuses
- Remainders: Hours not yet billed
Checks:
- Billed amounts match hours worked
- Hourly rates correct
- Billing periods correct
- Remainders calculated correctly
Tests:
- Generate a test invoice
- Verify calculations
- Validate with accounting
Q12: Can we migrate validation workflows?
A: Yes, but it requires reconfiguration in the new system.
Steps:
-
Document current workflows
- Who validates what (roles)
- Validation deadlines
- Business rules
- Escalations
-
Mapping to new system
- Identify equivalents
- Adapt if needed
- Document differences
-
Reconfiguration
- Configure workflows
- Test validations
- Train managers
Tests:
- Create a test timesheet
- Validate per workflow
- Check notifications
- Test escalations
Q13: How to train teams after migration?
A: Run role-based training sessions with documentation and dedicated support.
Training plan:
1. Administrators (2-3h)
- Advanced configuration
- User management
- Reporting and analytics
- Maintenance
2. Managers (1-2h)
- Timesheet validation
- Profitability steering
- Staffing and allocation
- Alerts and notifications
3. Consultants (30 min - 1h)
- Timesheet entry
- Mobile use
- Main features
- FAQ and support
Post-migration support:
- Accessible documentation
- FAQ and guides
- Dedicated support (1-2 weeks)
- Q&A sessions
- Temporary hotline
Risk and Strategy Questions
Q14: What are the risks of migration?
A: Main risks are data loss, service interruption, resistance to change, and mapping errors.
Risks and mitigation:
1. Data loss (Risk: Medium)
- Mitigation: Full backups, batch migration, validation after each step
- Probability with good preparation: < 1%
2. Service interruption (Risk: Low)
- Mitigation: Transition period, double entry, old system as backup
- Probability with good preparation: < 5%
3. Resistance to change (Risk: Medium)
- Mitigation: Communication, training, involving teams
- Probability with good preparation: 10-20%
4. Mapping errors (Risk: Low)
- Mitigation: Tests in test environment, progressive validation
- Probability with good preparation: < 5%
Overall success rate: 95%+ with good preparation
Q15: Can we migrate gradually (by team or project)?
A: Yes, it's possible but complex. It requires maintaining two systems in parallel longer.
Benefits:
- ✅ Less risky migration
- ✅ Progressive training
- ✅ Step-by-step validation
Drawbacks:
- ❌ Increased complexity
- ❌ Higher costs
- ❌ Possible confusion
- ❌ Duplicate risk
Recommendation:
- Small IT services firms (< 50 consultants): Full migration
- Large IT services firms (100+ consultants): Gradual migration possible
If gradual migration:
- Define phases clearly
- Communicate dates
- Avoid overlaps
- Validate each phase
Q16: How to migrate user permissions and roles?
A: List all roles and permissions, map them to the new system's roles, then assign them during import.
Steps:
-
Role inventory
- List of roles in old system
- Permissions per role
- Users per role
-
Mapping to new system
- Identify equivalents
- Adapt if needed
- Document differences
-
Import and assignment
- Import users with their roles
- Verify permissions
- Test access
Checks:
- All roles configured
- Permissions correct
- Users have correct access
- Access tests passed
Q17: What if the new system doesn't support some features?
A: Identify critical features before choosing the new solution. If some features are missing, assess whether they're truly necessary.
Steps:
-
Feature audit
- List of current features
- Identify critical vs nice-to-have
- Check in new solution
-
Evaluate alternatives
- Equivalent features
- Possible workarounds
- Custom development
-
Decision
- Accept differences
- Adapt processes
- Custom develop (if critical)
Critical features:
- Billable/non-billable distinction
- Automatic TACE calculation
- Real-time staffing
- Essential integrations
Q18: Can we roll back after migration?
A: Yes, if you kept full backups and the old system in read-only mode.
Conditions for rollback:
- ✅ Full backups available
- ✅ Old system still accessible
- ✅ Data not corrupted
- ✅ Team available
Rollback process:
- Stop new system
- Restore old system
- Restore data from backup
- Validate operation
- Communicate to teams
Complexity: High, costly, lengthy
Recommendation: Better to prepare migration well to avoid having to roll back.
Q19: How to migrate leave and absence data?
A: Export leave data, clean it, then import into the new system.
Data to migrate:
- Leave: Dates, types, statuses, approvals
- Absences: Sick leave, training, etc.
- RTT: Days available, used
- History: 12-24 months
Checks:
- Correct dates
- Correct leave types
- Statuses preserved
- Availability calculations correct (TACE)
Tests:
- Create a test leave
- Verify availability calculation
- Validate alerts
Q20: What is the best time to migrate?
A: Start of month or start of quarter, avoiding accounting close periods.
Recommended periods:
- ✅ Start of month (1st-5th of month)
- ✅ Start of quarter (January, April, July, October)
- ✅ Calm periods (avoid project rushes)
Periods to avoid:
- ❌ End of month (monthly close)
- ❌ End of quarter (quarterly close)
- ❌ End of year (annual close, holidays)
- ❌ Rush periods (major deliveries)
Planning:
- Identify calm periods
- Plan 2-3 weeks ahead
- Communicate dates
- Prepare teams
Conclusion
These 20 questions cover the essential aspects of timesheet software migration. A successful migration requires thorough preparation, methodical execution and careful follow-up.
Key takeaways:
- ✅ Prepare: Full audit, detailed plan, backups
- ✅ Test: Always test in test environment
- ✅ Validate: Check each step
- ✅ Communicate: Inform all stakeholders
- ✅ Train: Ensure adoption of the new system
Average migration time: 3-6 weeks (depending on complexity)
Success rate with good preparation: 95%+
Need help with your migration?
- 📖 See our complete migration guide
- 💬 Contact our team for personalized support
- 🚀 Try TimeTrack free for 14 days
Related articles:
💡 En savoir plus
Découvrez comment TimeTrack peut vous aider à optimiser votre gestion de temps.
Essayer gratuitement pendant 14 joursPartager cet article
Partagez cet article avec votre réseau
Articles similaires
Voir tous les articlesActivity Report (CRA) FAQ: 30 Frequently Asked Questions in 2026
Complete answers to the 30 most common questions about activity reports (CRA), salary portage, legal obligations and CRA software for IT services in 2026.
Timesheet FAQ: 20 Frequently Asked Questions Answered in 2026
Complete answers to the 20 most frequent questions about timesheet software, time management, activity reports and optimization for IT services firms. Complete FAQ guide.
Timesheet Migration: How to Switch Solutions Without Losing Data
Complete guide to migrate your timesheet software without losing data. Detailed steps, checklist, best practices and pitfalls to avoid for a successful migration in 2026.