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ERP Migration

Managing Concurrent ERP Environments During Parallel Run Periods

A practical guide for CIOs and IT leaders on executing parallel ERP runs, managing data synchronization, mitigating operational risks, and ensuring a smooth cutover.

8 min readSysGenPro Editorial
Managing Concurrent ERP Environments During Parallel Run Periods

Managing Concurrent ERP Environments During Parallel Run Periods

Managing concurrent ERP environments during parallel run periods requires a disciplined approach to data synchronization, operational oversight, and risk mitigation. The primary goal is to validate the new system's ability to handle real-world business processes without disrupting ongoing operations. This phase is critical because it exposes gaps in data mapping, integration logic, and user workflows that testing environments often miss. The main risks to control include data divergence between systems, operational bottlenecks caused by dual data entry, and security misconfigurations in the new environment. A successful parallel run ensures that the new ERP system is stable, accurate, and ready for cutover, minimizing the impact on business continuity.

Strategic Planning for Parallel Operations

Before initiating a parallel run, organizations must define clear objectives and success criteria. This involves identifying which business processes will be executed in both systems and establishing metrics for comparison. The duration of the parallel run should be sufficient to cover a full business cycle, including month-end or year-end closing processes if applicable. It is essential to assign specific roles and responsibilities for monitoring data integrity, resolving discrepancies, and making go/no-go decisions. The planning phase should also include a detailed communication plan to inform stakeholders about the dual-system operation and the expected impact on their workflows.

Defining Scope and Objectives

The scope of the parallel run should be carefully defined to avoid overwhelming the organization with excessive dual data entry. Focus on critical business processes that are most likely to be affected by the migration, such as order-to-cash, procure-to-pay, and financial reporting. Establish clear objectives for each process, such as achieving 100% data accuracy or reducing processing time by a specific percentage. These objectives will serve as the basis for evaluating the success of the parallel run and making the decision to proceed with cutover.

Assigning Roles and Responsibilities

A dedicated team should be established to manage the parallel run, including members from IT, finance, operations, and the project management office. This team should be responsible for monitoring system performance, resolving data discrepancies, and communicating with stakeholders. Clear escalation paths should be defined for critical issues that could impact business operations. The team should also be responsible for documenting lessons learned and updating the cutover plan based on the findings from the parallel run.

Data Synchronization and Integrity

Data synchronization is the most critical aspect of managing concurrent ERP environments. The goal is to ensure that data entered in one system is accurately reflected in the other, allowing for meaningful comparison. This can be achieved through automated integration middleware or manual data entry, depending on the complexity of the data and the available resources. Automated synchronization is preferred for high-volume transactions, while manual entry may be necessary for complex or infrequent processes. Regardless of the method, it is essential to establish a robust data reconciliation process to identify and resolve discrepancies.

Automated vs. Manual Synchronization

Automated synchronization using middleware or APIs is the most efficient way to manage data flow between concurrent ERP systems. This approach reduces the risk of human error and ensures that data is updated in real-time or near real-time. However, it requires careful configuration and testing to ensure that data is mapped correctly and that error handling is in place. Manual synchronization, on the other hand, is more flexible and can be used for processes that are not easily automated. However, it is more time-consuming and prone to errors, making it suitable only for low-volume or critical processes.

Data Reconciliation Processes

Data reconciliation is the process of comparing data from both systems to identify and resolve discrepancies. This should be performed regularly, such as daily or weekly, depending on the volume of transactions. The reconciliation process should include checks for data completeness, accuracy, and consistency. Discrepancies should be documented, investigated, and resolved in a timely manner. The results of the reconciliation should be reported to the project team and stakeholders to provide visibility into the health of the parallel run.

Operational Continuity and Risk Mitigation

Running two ERP systems simultaneously can place a significant burden on operational teams, who must enter data in both systems. This can lead to fatigue, errors, and decreased productivity. To mitigate these risks, organizations should provide adequate training and support to users, and consider implementing temporary measures to reduce the workload, such as automating data entry or using batch processing. It is also important to monitor system performance closely to identify and address any bottlenecks or issues that could impact business operations.

Managing User Workload

To manage the increased workload on users, organizations should provide clear instructions and training on how to enter data in both systems. This should include guidance on data entry standards, error handling, and escalation procedures. Temporary measures, such as automating data entry or using batch processing, can also be implemented to reduce the manual effort required. It is important to monitor user feedback and adjust the process as needed to ensure that users are not overwhelmed.

Monitoring System Performance

System performance should be monitored closely during the parallel run to identify and address any issues that could impact business operations. This includes monitoring system uptime, response times, and error rates. Performance metrics should be compared to baseline values to identify any deviations. If performance issues are identified, they should be investigated and resolved in a timely manner. The results of the performance monitoring should be reported to the project team and stakeholders to provide visibility into the health of the parallel run.

Cutover Planning and Execution

The cutover is the final step in the ERP migration process, where the new system becomes the primary system of record. The cutover plan should be developed based on the findings from the parallel run and should include detailed steps for data migration, system configuration, and user training. The cutover window should be carefully planned to minimize downtime and impact on business operations. It is essential to have a rollback plan in place in case the cutover is not successful.

Developing the Cutover Plan

The cutover plan should include detailed steps for data migration, system configuration, and user training. It should also include a timeline for the cutover, including the start and end times for each step. The plan should be reviewed and approved by all stakeholders before the cutover is executed. It is important to have a clear communication plan to inform users and stakeholders about the cutover and the expected impact on their workflows.

Executing the Cutover

The cutover should be executed according to the plan, with close monitoring of each step. Any issues that arise should be addressed in a timely manner. The cutover should be completed within the planned window to minimize downtime. After the cutover is complete, the new system should be monitored closely to ensure that it is operating as expected. Any issues that arise should be addressed in a timely manner.

Post-Migration Stabilization

After the cutover, the new ERP system should be monitored closely to ensure that it is operating as expected. This includes monitoring system performance, data integrity, and user adoption. Any issues that arise should be addressed in a timely manner. The project team should continue to provide support to users and stakeholders during the stabilization period. Lessons learned from the parallel run and cutover should be documented and used to improve future ERP migration projects.

Monitoring and Support

During the stabilization period, the new ERP system should be monitored closely to ensure that it is operating as expected. This includes monitoring system performance, data integrity, and user adoption. Any issues that arise should be addressed in a timely manner. The project team should continue to provide support to users and stakeholders during the stabilization period. This includes providing training, answering questions, and resolving issues.

Lessons Learned and Continuous Improvement

Lessons learned from the parallel run and cutover should be documented and used to improve future ERP migration projects. This includes identifying areas for improvement in the planning, execution, and monitoring processes. The lessons learned should be shared with the project team and stakeholders to ensure that they are aware of the findings and can take action to address them. Continuous improvement is essential to ensure that future ERP migration projects are more successful.

Key Considerations for Success

  • Define clear objectives and success criteria for the parallel run.
  • Assign specific roles and responsibilities for monitoring and resolving issues.
  • Implement robust data synchronization and reconciliation processes.
  • Monitor system performance closely to identify and address issues.
  • Develop a detailed cutover plan with a rollback strategy.
  • Provide adequate training and support to users during the parallel run.
  • Document lessons learned and use them to improve future projects.
PhaseKey ActivitiesResponsible RolesKey Metrics
PlanningDefine scope, objectives, and rolesProject Manager, IT DirectorScope Definition, Role Assignment
Parallel RunData synchronization, reconciliation, monitoringIT Team, Finance, OperationsData Accuracy, System Performance
CutoverData migration, system configuration, user trainingIT Team, Project ManagerCutover Completion, Downtime
StabilizationMonitoring, support, lessons learnedIT Team, Project ManagerSystem Stability, User Adoption
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SysGenPro Editorial

SysGenPro Editorial

Platform & solutions team

Practical guidance on ERP, AI automation, cloud deployment and enterprise transformation from the SysGenPro team.

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Frequently asked questions

Common questions on this topic. Talk to our team for anything specific to your business.

01How long should an ERP parallel run last?

The duration of an ERP parallel run should be sufficient to cover a full business cycle, including month-end or year-end closing processes if applicable. Typically, this ranges from one to three months, depending on the complexity of the business processes and the volume of transactions.

02What are the main risks of running two ERP systems at once?

The main risks include data divergence between systems, operational bottlenecks caused by dual data entry, and security misconfigurations in the new environment. These risks can lead to data integrity issues, decreased productivity, and potential business disruptions.

03How do you synchronize data between legacy and new ERP systems?

Data synchronization can be achieved through automated integration middleware or manual data entry. Automated synchronization is preferred for high-volume transactions, while manual entry may be necessary for complex or infrequent processes. A robust data reconciliation process is essential to identify and resolve discrepancies.

04What is the best strategy for ERP cutover?

The best strategy for ERP cutover is a phased approach, where the new system is rolled out in stages, starting with less critical processes and moving to more critical ones. This allows for gradual user adoption and reduces the risk of business disruptions.

05How do you handle user resistance during parallel runs?

User resistance can be handled by providing adequate training and support, communicating the benefits of the new system, and involving users in the planning and execution of the parallel run. It is also important to address any concerns or issues that users may have in a timely manner.

06What metrics should be monitored during a parallel run?

Key metrics to monitor during a parallel run include data accuracy, system performance, user adoption, and operational efficiency. These metrics should be compared to baseline values to identify any deviations and address them in a timely manner.

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