The CRM integration checklist.

A CRM integration should make a specific customer journey dependable. “Connect the website to the CRM” leaves important questions unanswered: which submissions qualify, who owns each record, when should follow-up begin, and what happens when an update fails? Describe the event and its expected outcome before selecting a tool.

Confirm the build is necessary using custom software versus SaaS comparison. Document restore and replay conditions with resilient systems guide.

For a lead enquiry, an acceptance statement might be: a valid submission creates or updates one lead, preserves the permitted campaign context, assigns the correct team and records the hand-off status. Set a measurable delivery target with the operating team. A successful API response is one part of that outcome; it does not establish that sales received a usable record.

List the source and destination for every necessary field. Record the data type, required status, accepted values, transformation and owner. Distinguish an empty field from an instruction to clear an existing value. Country codes, dates, time zones, phone numbers and currency need explicit handling rather than assumptions.

Choose a system of record for each object or field. A CRM may own the sales stage while an accounting application owns invoice status. Two-way synchronization needs a conflict rule, an update origin and protection against loops. “The latest value wins” is only useful when reliable timestamps and the meaning of “latest” are agreed.

Use the downloadable mapping template as a starting point. Its example rows describe a fictional workflow and contain no real customer data. Extend it with consent, retention and data-location requirements that apply to your project.

A timeout can leave the sender unsure whether the receiver created a record. Retrying the same event without a stable identity may create duplicates. Assign a source event identifier, retain the processing state and use an idempotency mechanism supported by the destination or implemented in your integration layer.

An event identity and a customer identity solve different problems. An event identifier prevents replaying the same operation, while a customer-matching policy determines whether two enquiries belong to the same person or organisation. Define the matching fields and review ambiguous cases. Shared email addresses and changed contact details can make automatic merging unsafe.

Provider behavior varies. Stripe’s API documentation gives a concrete example of idempotency-key behavior, including retention and error handling. Check the actual CRM and integration provider documentation rather than assuming every API offers the same guarantees.

Separate errors that might succeed later from errors that need a correction. A temporary outage or rate limit can justify a bounded retry with backoff and provider guidance. A rejected field value, missing permission or revoked credential needs a different response. Repeating the request indefinitely hides the problem and may consume the request allowance.

Maintain a failed-job queue with the event identifier, relevant status, attempt count and a safe diagnostic reason. Provide an authorised way to inspect, correct and replay the event. Keep secrets and unnecessary customer content out of logs. Decide who receives an alert and what they can do to resolve it.

Reconciliation catches gaps that ordinary error alerts can miss. Compare accepted source events with destination records over an agreed period. Include delayed events and duplicates in the comparison. Document the recovery steps so an incident does not depend on the developer who originally built the connector.

Use a dedicated integration identity where the platform supports one, with permissions limited to the required objects and actions. Store credentials in the approved secret-management system. Plan credential rotation, revocation and the handover when a vendor or team member changes.

A customer record can contain fields that the receiving system does not need. Transfer only the agreed information, control who can view it and define deletion behavior across connected systems. If an AI step summarises an enquiry, specify which provider receives the text and how its output is reviewed before it changes a business record.

Security testing should include object-level permissions, access to individual fields and safe treatment of third-party responses. The OWASP API Security Top 10 provides a useful risk framework; it does not replace testing of your application or a project-specific privacy assessment.

Agree consistent source and campaign naming so marketing and sales can compare the same journey. Distinguish the original acquisition source from subsequent interactions. Keep an explicit “unknown” state rather than inventing attribution when the information is missing.

The source of a lead does not establish permission to send marketing. Carry the consent state, scope and capture time where needed, and respect withdrawals in downstream workflows. Avoid placing customer names, email addresses or other sensitive information in campaign URLs. Reporting should describe the gaps caused by missing identifiers and user choices.

A useful acceptance test pack includes a valid enquiry, a repeated delivery of the same event, an invalid field, an unavailable destination, a rate-limited response, an expired credential, a late update and a conflicting edit. Add examples for time zones and non-English text when the business operates across markets.

Use synthetic records in an appropriate test environment. Verify the destination record, assignment, notifications and recovery state rather than checking only an HTTP response. Set a clear cleanup procedure and avoid sending trial messages to real customers. Capture enough evidence for the business owner to approve the workflow.

For launch, agree the data backfill, cutover window, reconciliation checks and rollback conditions. A rollback plan should explain what happens to records already created in the destination. Turning off the connector alone may not undo the effects of earlier writes.

The deliverable should include a field map, object ownership rules, integration diagram, event and retry behavior, access inventory, test evidence and recovery instructions. Name the owner of each connected system and define how changes to fields, permissions and API versions will be communicated.

Include running costs and responsibilities in the proposal. Connector subscriptions, API usage, monitoring and maintenance can continue after development. Agree support hours and escalation routes that the team can actually provide. Review the workflow after launch using failed-event rates, duplicate records, hand-off times and reconciliation results.

JC TechLabs can scope CRM integrations alongside custom software, workflow automation and campaign reporting. Bring the business outcome, the systems involved and a fictional or redacted example record to the initial discussion. That gives the team a practical basis for estimating the work and identifying dependencies.