You can connect a CRM and an ERP while keeping both if they provide suitable access mechanisms and you agree which information each system owns. Define record identity, update rules, and failure recovery before synchronization begins. The first integration should cover a specific workflow, with tests that reveal duplicate records and differences between systems.
Which system should control each field?
Start with business decisions. The CRM might own the commercial relationship while the ERP owns the information needed to fulfill an order. This is an illustration; the right division depends on your operation.
Assign authority at the field level. One team might maintain the sales contact while another validates billing details. If both applications can edit a field, decide which update prevails, how a conflict is detected, and who resolves it.
Define statuses as well. A “won” opportunity is not necessarily an order ready for fulfillment. An approval, address, or other validation may still be missing. The integration should respect those conditions before creating operational records.
How will you identify the same customer in both systems?
Ask for a stable matching rule. Company names change, and several contacts may belong to the same organization. Approximate name matching should be reviewed before it is used to update records automatically.
Keep a mapping between source and destination record identifiers. Decide what happens when that mapping is missing: search under agreed rules, prepare a proposed match for review, or create a record when sufficient evidence exists.
If historical duplicates already exist, separate cleanup from the handling of new data. Agreeing on how historical records will be treated prevents the project from assuming a clean starting point that has not been established.
Does every update need to happen immediately?
Ask how much delay each workflow can tolerate. Sales follow-up updates and availability checks may have different needs. Set the requirement per operation, then check whether the vendors’ interfaces can support it.
Review APIs, event notifications, import capabilities, usage limits, and permissions. If an application lacks a suitable interface, a controlled export or an explicit manual step may be appropriate. Identify that constraint before making operational commitments.
Where feasible, begin with one direction and a limited set of fields. Add return updates after testing how the integration prevents loops in which each application republishes the other application’s change.
What happens when a request repeats or arrives late?
Require a concrete answer. For example, Stripe documents that its webhook events can repeat and arrive out of order. Check the delivery guarantees of each provider involved in your workflow.
An integration needs to distinguish a new operation from a retry. Stripe’s API supports idempotency keys for retrying certain requests without performing the operation again. Other systems may provide different mechanisms, so the implementation must be checked for each destination.
Ask the team to test an interruption after the destination saves a record but before it confirms the response. Recovery may need to check the actual destination state before attempting another write. A general promise of “zero duplicates” is difficult to assess without these conditions.
How will you know the integration is still working?
Agree on what the operational owner can see: pending records, the last attempt, the reason for an error, and available next steps. Distinguish failures that can be retried from those requiring corrected data or permissions.
Alongside technical status, define a reconciliation check: expected operations should have corresponding destination records, and relevant fields should match. Sending a message does not, by itself, establish that the business task completed correctly.
Activity records should support investigation without unnecessarily copying sensitive information. Decide who can read them, how long they are retained, and who receives alerts that require action.
What should the pilot demonstrate?
Use a test environment and approved examples to check at least these scenarios:
Feasibility depends on your systems’ interfaces and restrictions. Bring a complete workflow example, required fields, and known exceptions to a conversation with QuantixCode. That evidence helps define a focused integration and establish whether keeping the existing tools can resolve the operational problem.