Changing eCommerce agencies can feel like a significant operational risk.
Your current agency may have built the website, configured its integrations and supported it for years. They understand the customisations, know where problems tend to occur and hold knowledge your internal team may not have.
Even when the relationship is no longer working, staying can feel easier than moving.
But a carefully planned handover can allow your business to change partners while continuing to trade. The key is understanding your existing environment, establishing ownership and transferring responsibility in a controlled way.
For retailers, wholesalers and manufacturers running Shopify Plus or Adobe Commerce, the transition needs to account for much more than the storefront. It must also protect the systems and processes supporting pricing, inventory, orders, payments and fulfilment.
When Should You Consider Changing eCommerce Agencies?
An occasional delay or technical issue does not necessarily mean you need a new agency. Complex commerce environments require ongoing work, and even strong partnerships encounter problems.
The more useful question is whether your current partner consistently helps your business move forward.
Warning signs include:
- The same technical problems repeatedly return.
- Routine improvements take too long to deliver.
- Estimates and invoices are difficult to understand.
- Integrations fail without clear investigation or resolution.
- Your team struggles to get useful advice.
- Important knowledge sits with one person.
- Development activity has little connection to business priorities.
- You lack confidence in the agency’s ability to support your next stage of growth.
Before deciding to move, explain your concerns and ask for a concrete improvement plan. A capable partner should be able to discuss what is going wrong, what needs to change and how progress will be measured.
If the problems continue, changing agencies may be the appropriate next step.
Does Changing Agencies Mean Rebuilding Your Website?
Changing your agency does not automatically require a rebuild.
An existing Shopify Plus or Adobe Commerce store may have a sound foundation but need better maintenance, stronger integration support or a more effective development process.
A new agency should assess the current environment before recommending substantial changes.
That assessment should distinguish between:
- Problems caused by the platform’s capabilities.
- Problems caused by how the platform was implemented.
- Problems caused by data, integrations or business processes.
- Problems caused by support and delivery arrangements.
For example, inaccurate stock availability might result from an integration failing to process updates. Replacing the storefront would not necessarily resolve the underlying issue.
Similarly, slow development might reflect poor documentation or an unreliable release process rather than a limitation of the commerce platform.
The initial objective should be to establish what can be retained, what needs attention and whether any larger investment is justified.
Establish What Your Business Owns and Controls
One of the most important parts of an agency transition is confirming access and ownership.
Your business should understand which accounts, assets and services support the store, who controls them and how access can be transferred.
Review the following areas:
| Area | What to confirm |
|---|---|
| Commerce platform | Your business has appropriate administrative access and control of the account. |
| Source code | Custom code is accessible, with ownership and usage rights understood. |
| Hosting and infrastructure | Account ownership, billing and administrative access are documented. |
| Domains and DNS | Your business can access the services controlling its website addresses. |
| Applications and extensions | Subscriptions, licences and renewal responsibilities are recorded. |
| Integrations | Connected systems, credentials, middleware and support contacts are identified. |
| Analytics and marketing tools | Your team can access relevant accounts and manage partner permissions. |
| Documentation | Available architecture notes, deployment instructions and operating procedures can be transferred. |
Do not assume that paying an invoice means every associated account or licence is held in your business’s name.
Some services may sit within an agency account. Certain software licences may have transfer conditions. Custom code arrangements may depend on your agreement.
Identify these details early so they can be addressed before the handover date.
Map the Systems Behind Your Store
The visible website is only one part of an established eCommerce operation.
Your store may connect with an ERP, product information management system, warehouse platform, point of sale system, payment provider, shipping service and marketing tools.
A useful handover records how these systems work together.
For each integration, establish:
- What information moves between systems.
- Which system controls that information.
- How frequently updates occur.
- What custom rules affect the transfer.
- How failures are detected and reported.
- Who investigates and resolves problems.
Consider an order placed by a wholesale customer. The storefront may display customer-specific pricing, check available stock, accept an order on account and send it to the ERP for fulfilment.
The incoming agency needs to understand that complete journey, including exceptions such as backorders, credit restrictions or orders requiring review.
This is particularly important where the outgoing agency has developed custom middleware or embedded business rules in code.
Ask the Incoming Agency to Review the Environment
A responsible handover begins with a technical review.
The incoming agency needs enough information to understand what it will support, identify immediate risks and plan the transition.
Depending on the environment, this review may cover:
- Platform versions and maintenance status.
- Themes, extensions and custom functionality.
- Integration architecture and monitoring.
- Hosting and deployment arrangements.
- Security and access management.
- Performance issues and recurring errors.
- Development and testing environments.
- Outstanding work and known defects.
- Backup and recovery arrangements.
- Third-party dependencies.
For Shopify Plus, particular attention may be needed around applications, custom apps, theme code and external services.
For Adobe Commerce, the review may also need to examine infrastructure, custom modules, patches, scheduled processes and upgrade requirements.
The output should be understandable to your business. You need a clear view of urgent issues, gaps in knowledge and the work required to assume support.
Create a Written Handover Plan
A successful agency transition needs named responsibilities and an agreed sequence of work.
The plan should establish:
- What the outgoing agency will provide.
- What the incoming agency will review and verify.
- What your internal team needs to supply or approve.
- When support responsibility changes.
- How open incidents and unfinished work will be handled.
- Which access permissions will be changed, and when.
- Who coordinates the transition.
Where practical, arrange a period in which the incoming agency can review documentation and raise questions while the outgoing team remains available.
Choose the timing around your trading calendar. Major promotions, peak periods and other technology changes can make a handover harder to manage.
Your store may continue operating throughout the transition, but it can still be sensible to limit non-essential releases during the transfer of responsibility.
Transfer Knowledge as Well as Access
Administrative access alone does not explain how a store operates.
The most useful handovers include knowledge transfer between the outgoing agency, incoming agency and internal team.
These sessions should cover everyday operations and the exceptions that are easy to miss.
Useful questions include:
- Which recurring issues require manual intervention?
- Are there undocumented pricing or inventory rules?
- Which scheduled processes are essential?
- How are releases tested and deployed?
- What happened during previous significant incidents?
- Which features depend on external services?
- What work is partially completed?
Your internal staff can make a valuable contribution here. Customer service, warehouse, finance and sales teams often know about workarounds that never appear in technical documentation.
Record this information in a form the business can retain and update.
Test the Journeys Your Business Depends On
Before the incoming agency assumes full responsibility, verify the customer journeys and operational processes that matter most.
Testing should reflect your actual business rather than a single standard purchase.
Depending on your requirements, that could include:
- Retail checkout and payment.
- Trade customer login and account pricing.
- Orders placed on credit terms.
- Discounts and promotions.
- Shipping calculations and delivery options.
- Click and collect.
- Inventory updates from connected systems.
- Order transfer to the ERP.
- Fulfilment updates and customer notifications.
- Refunds, cancellations and returns.
Include representative exceptions, such as a mixed-stock order or a customer with negotiated pricing.
Record existing issues separately from problems introduced during the transition. This gives everyone a clearer basis for prioritising work and assessing the handover.
Agree on Support Before the Transition Date
Your business should know exactly who to contact once the new arrangement begins.
Confirm the support scope, operating hours, escalation process and response commitments before transferring responsibility.
Clarify how incidents involving third-party systems will be managed. If orders stop reaching the ERP, someone needs to coordinate the investigation across the commerce platform, integration and ERP teams.
Also establish how planned improvements will be prioritised alongside maintenance and incident response.
A clear support arrangement should explain how work enters the queue, who approves it and how your business receives updates.
Use the First 30–90 Days to Build a Clear Improvement Plan
The first stage of a new partnership should create confidence in the environment and a shared understanding of priorities.
Early work may include addressing urgent risks, improving documentation, resolving recurring incidents and establishing reliable release procedures.
Once the agency understands the operation, it can help build a longer-term improvement plan.
That plan should connect technical work to business needs, such as:
- Reducing manual order processing.
- Improving inventory accuracy.
- Making changes easier to release.
- Improving checkout completion.
- Helping trade customers order online.
- Reducing repeated support issues.
Agree on a baseline and measures suited to each objective. This makes the value of the new partnership easier to assess.
Common Mistakes to Avoid
Agency transitions become harder when businesses leave access checks until the final week, assume integrations are included in support or begin substantial development before the incoming team understands the store.
Another common mistake is changing too much at once.
Moving agencies, replacing the platform, changing the ERP and redesigning the customer experience can create overlapping dependencies. If several changes are necessary, sequence them deliberately and establish who owns the overall plan.
Keep the outgoing relationship professional wherever possible. Clear requests, agreed deliverables and realistic timing make knowledge transfer more effective.
Planning Your Next eCommerce Partnership
A well-managed agency handover gives your business a clearer understanding of its technology, stronger control of its accounts and a practical foundation for future improvement.
The right incoming partner should be able to explain what it needs to review, how it will assume responsibility and where uncertainty remains.
OSE works with retailers, wholesalers and manufacturers across Shopify Plus, Adobe Commerce and connected business systems. Our experience in commerce development, systems integration and ongoing support is relevant to businesses assessing their next agency partnership.
Considering a change of eCommerce agency? Talk to OSE about reviewing your existing environment and planning a supported handover.