Implement MDM to create a single source of truth across systems. With MDM, you can reconcile conflicting data by establishing rules on which system’s data takes precedence, reducing data inconsistencies over time.

1. Analyze beginning balance of new ERP vs end balance of legacy systems. 2. Identify differences and correct them in source if possible. If not make a correction available in reporting so the numbers are corrected. 3. Deprecate data from legacy systems as soon as possible. Try and migrate data from legacy system to new ERP or other suitable systems. 4. Implement an automated check that validates the data against fixed numbers to make sure data doesnt change retroactively.

To manage data discrepancies between legacy systems and ERP, start with a thorough data audit. For instance, identify key data points in both systems and compare them to pinpoint inconsistencies. Next, establish clear data entry protocols to ensure everyone follows the same standards moving forward. Utilize data migration tools that can validate and clean data during the transfer process. Finally, implement regular check-ups to catch any future discrepancies early, keeping all systems aligned and reliable for decision-making.

1. Conduct a Thorough Data Audit 2. Establish Data Governance and Standards by Defining,Ownership & Validation Rules 3. Develop a Data Reconciliation Plan 4. Implement Data Transformation and Tools 5. Implement Middleware or Integration Platforms 6. Monitor Data in Real-Time and Continuously 7. Establish a Change Management Process 8. Develop a Contingency Plan 9. Data Migration Strategy 10. Conduct Post-Integration Reviews

Establish a process to cleanse, standardize, and transform legacy data before integrating it with your ERP system. By employing data mapping tools, validation checks, and automated reconciliation scripts, you can ensure data consistency and accuracy. This reduces discrepancies by identifying mismatches early, maintaining data integrity across both systems, and fostering a reliable, unified data source for business operations.