The 5 Most Common Traps in ERP Integration

A significant portion of ERP integration projects go live later than planned. Not from a lack of code; because of traps overlooked at the start of the integration. In this article we'll cover these traps — and how they're avoided — in turn.

01. Trap 1: The Master-Record Decision Is Deferred

If it isn't determined up front which data is the master record in which system, integration means the two systems overriding each other. This decision should be written into an Excel file in the project's first week and approved by the whole team.

02. Trap 2: Time Zones and Clock Differences

The ERP keeps timestamps in UTC, B2B shows local time; or vice versa. If the two systems work with different notions of time, order dates can shift by hours. A single standard should be set from the start, preferably UTC at the system layer.

03. Trap 3: Outage Tolerance Isn't Tested

The ERP is in maintenance for a minute. Do the 12 orders that arrive during this minute get lost? If the answer is "yes," the integration is incomplete. Integration without a queuing mechanism (RabbitMQ, Azure Service Bus, etc.) shouldn't go to production.

04. Trap 4: Field Mapping Is Undocumented

At the project's start, which field goes to which field — all in a single Excel. Six months later, when the team changes, no one remembers. The field-mapping document should be kept versioned; every change should be committed.

05. Trap 5: Go-Live Isn't Parallel

"Old system today, new system tomorrow." This approach collapses within a week in production. A healthy transition is done with a 2-4 week parallel run: the same data enters both systems, and differences are monitored daily. When zero difference is seen for two weeks straight, the old system is shut down.