Microsoft Dynamics 365 and Salesforce are both established customer relationship management platforms. Either can support sophisticated sales, service and marketing operations, but they take different approaches to integration, data, licensing and wider business transformation.

For UK businesses, the right choice usually comes down to five questions:

• How well will the CRM fit your existing technology?
• Where will your data be stored and processed?
• What compliance and governance controls do you need?
• How much flexibility will you need as the business grows?
• What will the platform really cost to implement and operate?

This guide compares Microsoft Dynamics 365 vs Salesforce against those CRM selection criteria, so you can make a decision based on your organisation rather than a feature checklist.

Microsoft Dynamics 365 vs Salesforce: the short answer_

Microsoft Dynamics 365 is likely to be the stronger fit if your organisation already uses Microsoft 365, Azure, Power BI or other Microsoft business applications and wants CRM to become part of a connected technology platform.

Salesforce may be a better fit if you want a CRM-led ecosystem, already have significant Salesforce capability or rely on applications and processes built around the Salesforce platform.

Neither answer applies to every business. Your data architecture, user needs, governance requirements, implementation plan and long-term roadmap matter more than which product has the longest feature list.

Dynamics 365 vs Salesforce at a glance_

Which CRM works best with your existing technology?

Integration should be one of your first CRM selection criteria. Your CRM will need to exchange information with email, collaboration tools, finance systems, reporting platforms, websites and other operational applications.

Microsoft Dynamics 365 integration_

Dynamics 365 is built within the Microsoft ecosystem. Depending on your chosen applications and configuration, it can work with:

• Microsoft Outlook
• Microsoft Teams
• Microsoft SharePoint
• Microsoft Power BI
• Microsoft Power Automate
• Microsoft Power Apps
• Microsoft Fabric
• Microsoft Azure
• Dynamics 365 Business Central

This creates a strong case for Dynamics 365 when your employees already spend much of their day in Microsoft tools. CRM information can become part of wider sales, service, finance and operational workflows instead of sitting in a separate application.

Salesforce integration_

Salesforce also offers a substantial integration ecosystem, including application programming interfaces, partner applications and AppExchange products. It can connect with Microsoft products and many other business systems.

The important question is not whether an integration exists. It is how that integration will operate in your environment.

Ask:

• Is the integration native, pre-built or custom?
• Will it require middleware or another licence?
• Which platform will own the master record?
• How will errors and failed data exchanges be managed?
• Who will support the integration?
• What happens when either platform is updated?

A demonstration may show two products exchanging data. Your architecture review needs to establish whether that connection will remain secure, supportable and affordable in day-to-day operation.

How do Dynamics 365 and Salesforce compare for UK data residency?

Data residency describes the geographic location in which data is stored. Data sovereignty goes further, considering the legal and regulatory framework governing that data.

These questions are particularly important if your organisation operates in a regulated sector, handles sensitive information or has policies requiring data to remain in the UK.

Dynamics 365 environments can be provisioned in Microsoft Azure regions. Microsoft operates UK regions that can support UK-hosted Dynamics 365 environments, subject to the service, tenant architecture and configuration selected.

However, choosing a UK region does not automatically answer every residency question. You should also establish:

• Where production data is stored
• Where backups and disaster recovery copies are held
• Where support teams may access data
• Whether integrations move data into other regions
• Where analytics and artificial intelligence processing takes place
• Whether telemetry or diagnostic information crosses borders
• How multi-region users and environments will be managed

Salesforce provides its own regional hosting, data-residency and architectural options. The availability and commercial terms of those options can vary, so buyers should request a written explanation of the proposed architecture rather than relying on a general product statement.

For both platforms, make the supplier document the complete data journey. The CRM database is only one part of it. Marketing platforms, data warehouses, integrations, backup services and AI features can all affect where information is processed.

Which platform is better for UK compliance?

A CRM does not make an organisation compliant on its own.

Both Microsoft Dynamics 365 and Salesforce provide security, access-management and audit capabilities. Your compliance position depends on how those controls are configured, how data is used and the processes operated around the platform.

Your assessment should cover:

• UK General Data Protection Regulation requirements
• Data retention and deletion policies
• Data subject access requests
• Role-based access
• Multi-factor authentication
• Audit logging
• Encryption
• Data loss prevention
• Privileged administration
• Third-party application access
• Incident response
• Backup and recovery

The Microsoft approach can be particularly relevant for organisations already using Microsoft Entra ID, Microsoft Purview, Microsoft Defender or other Microsoft security services. A connected Microsoft architecture may make it easier to apply identity, information protection and governance policies across CRM and the wider workplace.

That does not remove the need for design work. Permissions must still reflect job roles, integrations must use appropriate access and audit settings must support your actual compliance requirements.

When comparing proposals, ask each supplier to show how the recommended configuration meets your controls. A list of security features is not the same as a governed solution.

Which CRM offers greater scalability?

Scalability is not simply the number of users a platform can support. It means being able to expand processes, data volumes, regions and services without creating unacceptable cost or complexity.

Scaling with Microsoft Dynamics 365_

Dynamics 365 follows a modular model. An organisation might begin with Dynamics 365 Sales, then introduce customer service, field service, marketing, finance or project capabilities as requirements develop.

Power Platform can extend the environment with applications, workflows and automation, while Microsoft Fabric, Power BI and Azure can support wider data, reporting and integration requirements.

This gives Dynamics 365 an advantage when CRM forms part of a broader Microsoft transformation. It can support a move from departmental customer management towards a connected platform spanning sales, service, finance, operations, data and AI.

The trade-off is that a broader platform requires stronger governance. Without clear ownership, organisations can accumulate poorly controlled applications, duplicated automations and unnecessary customisation.

Scaling with Salesforce_

Salesforce can support complex and international CRM requirements through its product portfolio, platform capabilities and application ecosystem. It may suit organisations that want Salesforce to remain the centre of customer-facing operations and have the skills to manage that environment.

As the platform expands, buyers should assess how additional products, storage, data services, integrations and specialist support affect the architecture and commercial model.

With either CRM, scalable design depends on disciplined decisions. Configure standard capability where it meets the requirement. Customise only where the business value justifies the long-term maintenance.

Microsoft Dynamics 365 vs Salesforce: which has the lower total cost?

There is no reliable universal answer. The platform with the lower licence price can still have the higher total cost of ownership.

A useful CRM comparison should consider at least six areas.

1. Software licences_

Identify the licences required for each user type, department and region. Include base products, additional applications, storage, AI features, analytics and test environments.

2. Implementation_

Account for:

• Discovery and solution design
• Configuration and development
• Data cleansing and migration
• Integrations
• Testing
• Training
• Change management
• Go-live support

3. Supporting technology_

Include middleware, third-party connectors, marketplace applications, data platforms and reporting tools.

4. Internal resources_

Your own employees will need to join workshops, validate designs, prepare data, test the system and support adoption. That is a real cost even if it does not appear on the supplier proposal.

5. Ongoing management_

Consider platform administration, release testing, technical support, security reviews, integration monitoring and continuous improvement.

6. Cost of change_

A rigid or over-customised CRM can make future changes expensive. Assess how easily each platform can support new processes, acquisitions, products, teams and regulatory requirements.

Dynamics 365 may offer a stronger total-cost fit where a business already owns and operates Microsoft technology, can reuse existing skills and wants to avoid maintaining separate platforms for connected processes.

Salesforce may offer the stronger commercial fit where the organisation already has Salesforce expertise, applications and established operating processes.

Build a three-to-five-year model based on your expected roadmap. Do not compare two headline licence prices and call it a business case.

How should you choose between Dynamics 365 and Salesforce?

A structured evaluation will give you a clearer answer than a feature-scoring exercise.

Start with the business outcomes_

Define what needs to improve. This might include:

• Increasing CRM adoption
• Reducing sales administration
• Improving pipeline visibility
• Connecting sales and service data
• Standardising processes
• Strengthening governance
• Improving reporting
• Supporting growth without adding manual work

Review your current architecture_

Map the applications, data sources and integrations that the CRM must work with. Identify duplicated information, manual transfers and systems that may be replaced.

Define the non-negotiables_

Set clear requirements for:

• UK data residency
• Security and access
• Availability
• Recovery
• Integration
• reporting
• Mobile access
• Support
• Accessibility
• Regional operation

Model the complete cost_

Compare implementation and operating costs over the same period. Use the same assumptions for user growth, storage, integrations, support and internal effort.

Test real processes_

Ask suppliers to demonstrate your scenarios using realistic data and roles. A generic product tour will not show how the CRM will support your organisation.

Evaluate the delivery partner_

The platform is only part of the decision. Look at the partner’s sector experience, delivery method, data capability, adoption approach, support model and ability to challenge unnecessary complexity.

When should you choose Microsoft Dynamics 365?

Dynamics 365 is likely to deserve serious consideration if:

• Microsoft 365 and Azure already form part of your technology strategy
• You want closer links between CRM, enterprise resource planning, collaboration, data and automation
• You need extensive process configuration or low-code extension
• Your long-term roadmap includes Power Platform, Power BI, Fabric or Copilot
• You want a modular route from CRM improvement towards wider business transformation
• You prefer one strategic Microsoft partner across connected areas of the estate

When might Salesforce be the better fit?

Salesforce may remain the stronger option if:

• Your organisation already has substantial Salesforce capability
• Important processes and applications are established on the Salesforce platform
• Salesforce is intended to remain the strategic centre of customer operations
• Replatforming would introduce more risk and cost than improving the current environment
• Your required applications or partner expertise are better supported within the Salesforce ecosystem

A good CRM decision is not about proving one product is universally better. It is about finding the platform that offers the best fit, lowest operational friction and strongest long-term value for your organisation.

Frequently asked questions_

Is Microsoft Dynamics 365 better than Salesforce?

Neither platform is better for every organisation. Dynamics 365 is often a better fit for businesses using Microsoft technology and seeking connected CRM, data and automation. Salesforce may be stronger where an organisation already has a Salesforce-led architecture, skills and application estate.

Can Salesforce integrate with Microsoft 365?

Yes. Salesforce can connect with Microsoft products, but you should assess the architecture, licensing, support ownership and user experience of each integration. An available connector does not automatically provide the same experience as applications designed within one ecosystem.

Can Dynamics 365 keep CRM data in the UK?

Dynamics 365 environments can be deployed in Microsoft Azure regions, including UK regions, subject to the specific service and architecture selected. You should confirm storage, backup, support, integration and AI-processing locations as part of your solution design.

Is Dynamics 365 cheaper than Salesforce?

It depends on the licences, products, users, implementation and integrations required. Dynamics 365 can offer a compelling total-cost fit for organisations already invested in Microsoft, but buyers should model the complete cost over several years.

What should a CRM comparison include?

A robust CRM comparison should cover business requirements, user experience, integration, data residency, compliance, scalability, implementation, adoption, support and total cost of ownership.

Is it difficult to migrate from Salesforce to Dynamics 365?

The difficulty depends on data quality, customisation, integrations, process complexity and historical-data requirements. A structured discovery and migration plan can identify the risks before implementation begins.

The bottom line_

For Microsoft-centred UK businesses, Dynamics 365 presents a strong case. Its alignment with Microsoft 365, Power Platform, Azure, Power BI, Fabric and other Dynamics applications can support a connected approach to customer data, automation and reporting.

Salesforce remains a capable CRM platform with a mature ecosystem. It may be the right choice for organisations that already operate around Salesforce or want a dedicated CRM-led architecture.

The deciding factor should be fit. Examine the proposed architecture, data-residency model, governance controls, implementation approach and total cost over several years. The better CRM is the one your people can adopt, your IT team can govern and your business can continue to develop.

At Infinity Group, we use Microsoft technologies within our own business as well as implementing them for clients. That gives us practical experience of the decisions, disruption and ongoing improvement involved in Microsoft-first transformation. Read about our own journey using Dynamics 365 internally and how it helped us save £1.5 million.