Plugin Use Cases & Scenarios in Dynamics 365 CRM

Here’s a comprehensive list of real-world scenarios where Plug-in development is required in Dynamics 365 CRM, along with the functionalities that are typically implemented:

✅ 1. Data Validation

Scenario: Ensure that required business logic is enforced before saving a record.
Functionality:

  • Prevent creating a duplicate Contact record based on email.

  • Validate if the Account has a valid credit score before enabling a field.

📍Trigger: Pre-Validation / Pre-Operation


✅ 2. Data Enrichment or Auto-Population

Scenario: Automatically fill in values based on business logic.
Functionality:

  • Auto-generate a Case Title using Customer Name + Case Type.

  • Set Opportunity Estimated Close Date as +30 days from Created Date.

📍Trigger: Pre-Operation


✅ 3. Custom Business Logic Enforcement

Scenario: Execute complex rules not possible using workflows or Power Automate.
Functionality:

  • Apply tiered discount rules on Opportunity Line Items based on account category.

  • If Opportunity value > $100K, notify Finance and Sales Director.

📍Trigger: Post-Operation / Async


✅ 4. Integration with External Systems (via Plugin)

Scenario: Push data from CRM to external system in real-time.
Functionality:

  • When an Order is created, send the data to ERP via Azure Service Bus.

  • Call a third-party REST API to validate a PAN number on Contact creation.

📍Trigger: Post-Operation (Async preferred for performance)


✅ 5. Entity Relationship Handling

Scenario: Update related entities or maintain integrity.
Functionality:

  • When a Lead is converted to Contact + Account, auto-link existing records if matching.

  • When a Case is resolved, update the related Account’s “Last Support Date”.

📍Trigger: Post-Operation


✅ 6. Record Ownership Logic

Scenario: Implement auto-assignment or escalation.
Functionality:

  • Auto-assign a Case to a user in a specific queue based on region or priority.

  • Escalate Opportunities not modified in 10 days to Manager queue.

📍Trigger: Post-Operation or Scheduled (via Custom Plugin or Flow)


✅ 7. Custom Calculations

Scenario: Perform complex calculations not handled by calculated fields.
Functionality:

  • Calculate rolling average revenue per customer based on Opportunities.

  • Distribute an invoice amount across multiple child accounts.

📍Trigger: Pre-Operation / Post-Operation


✅ 8. Auditing and Logging

Scenario: Track changes and custom audit trail.
Functionality:

  • Store old vs new values of a custom field into a separate log entity.

  • Log plugin failures with context details to a custom log table.

📍Trigger: Pre-Operation / Post-Operation


✅ 9. Conditional Field Locking or Security

Scenario: Enforce field-level rules beyond UI.
Functionality:

  • Prevent update of “Annual Revenue” after it’s set once.

  • Allow only Finance Role to modify Payment Terms field.

📍Trigger: Pre-Operation


✅ 10. Multi-Step Complex Workflows

Scenario: When Power Automate isn’t performant or extensible.
Functionality:

  • Multi-entity conditional logic (if Contact is VIP, and Account Tier = Gold, then do X).

  • Workflow branching logic that spans plugins and workflows.


⚙️ Plugin Execution Context and Events

StageDescriptionCommon Use
PreValidationBefore DB transaction startsInput validation, external API call
PreOperationAfter validation, before DB saveModify input, default values
PostOperationAfter DB transactionIntegration, related updates