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Applications migration during company divestment

5 minutes read

After parting ways with its UK-based parent company, Thai retailer Lotus needed to migrate its core applications from data centres in the UK to those in Thailand. It was imperative to take ownership of support and development, and perform the migration of nine applications, including Oracle Retail Invoicing Matching in a short timeframe to ensure minimal risk to business operations.


IT Consulting, Packaged and Cloud Applications, System Integration, Infrastructure


Merchandising and Planning, Supply Chain, Finance



Oracle Retail (ReIM), Oracle OBIEE, Oracle APEX, Custom application, Open Source, etc.

Meet the client

Lotus's, a major retail chain owned by Charoen Pokphand Group, operates around 2,000 stores in Thailand and Malaysia. Serving 15 million people per week through both in-store and online platforms, it offers a wide range of products and services.






stores in Thailand and Malaysia

Lotus official website

The challenge

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The migration at Lotus encountered numerous challenges, primarily due to organisational complexity, latency issues, and the extensive scale of its operations. As a large corporation with 3,000 stores and managing 5 million daily transactions, Lotus faced the risk that significant errors could negatively impact customer loyalty and financial reporting.

A major hurdle identified during the transition was the significant lack of documentation and source code. This gap made it difficult to understand and manage the existing systems effectively. Additionally, employees knowledgeable about the system and its related processes had very limited time to dedicate to the migration.

The project also faced difficulties with the interdependencies between various applications. For instance, the Oracle Retail system alone had over 200 interfaces, each requiring careful assessment to gauge the migration impact.

Another major concern was the considerable distance between the UK and Thailand data centres, leading to high latency. This latency affected the bandwidth and data transfer times, particularly for the large Oracle database. The use of the same network for other critical tasks like video conferencing and company operations made the network department view this as a substantial risk.

Atiporn Jaroensri, CIO (fmr.), Lotus

I am pleased to highlight that Weigandt Consulting proved to be a trusted partner in this mission critical project. Their dedication to ensuring optimal system performance and their ability to work hand-in-hand with our team was commendable.

The solution

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We started the project by analysing its architecture and integration points, and then divided the work among four dedicated migration teams. Our strategy was focused on a copy and paste migration method, aimed at making minimal changes to the applications to reduce complexity and risk. We planned to update key IT tools, such as application monitoring, source version control, and the Trouble Ticketing system, after the applications had been moved to the new data centre. This approach helped further streamline the process, minimise risks, and save time.

In addition to the general migration plan, we specifically focused on the Microsoft application (OLDB - Lease Database), which we reverse-engineered to be compatible with the new active directory and security policies.

One of the challenges we faced was high network latency affecting bandwidth. To address this, we optimised Oracle SQL*Net, which was crucial for completing the database transfer within our targeted timeline. This optimisation significantly improved our bandwidth capabilities.

Project Summary

The migration project was completed successfully. Our team of 23 consultants and other specialists efficiently migrated applications within set timelines and budget, tackling high store translation volumes and intricate application dependencies. The Weigandt Consulting Team migrated Kafka, Autosys, and OLDB in 4 months, while ReIM, Oracle OBIEE and other custom solutions were transitioned over a span of 10 months.

Elmaz, Project Manager/SME, Weigandt Consulting

Every project has its challenges, but the key is how you navigate them. Our deep dives into the systems and processes of Lotus, coupled with collaboration at every stage, ensured that we kept things moving smoothly and on track.

The outcome

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The migration and system optimisation improved Lotus's IT independence from its former parent company, setting Lotus up for growth and digital innovation:

Successful M&A Execution: The structured approach and timely delivery played a pivotal role in successfully closing a multi-million M&A deal.

Ownership and Control: The program empowered Lotus to take ownership of the applications, laying the groundwork to fully separate its IT infrastructure.

Rapid System Improvements: By decoupling critical applications from the former parent company, Lotus could initiate system enhancements at a much faster pace.

Cost, Quality, and Control: Gaining independence allowed Lotus to exercise better control over IT expenditures and uphold quality standards.

Based on our experience, I confidently recommend Weigandt Consulting for Application Implementation and Support services, as well as other related endeavours.

Atiporn Jaroensri, CIO (fmr.), Lotus

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