Who Maintains ERP Customisations After Go-Live?

After implementing an ERP system, companies often face the challenge of maintaining customizations and ensuring seamless integration. The finance team may continue to reconcile production data manually, warehouses might rely on side spreadsheets, and reports could still take days to generate due to data mismatches. This does not necessarily indicate a project failure, but rather a shift from an implementation issue to a maintenance and integration problem.

The ERP vendor is responsible for maintaining the standard product, including supported modules, product updates, standard APIs, security patches, and defect resolutions. However, this does not extend to company-specific workflows, integrations, and reports built around the ERP system. The internal team must own the business rules, determining how the business operates, which exceptions require approval, and which customer formats are correct.

For the missing bridge between the ERP and company-specific processes, an independent post-go-live software partner can be a valuable resource. This partner can diagnose gaps, decide what is worth fixing, build narrow, useful parts, and name the maintenance owner before release. By focusing on specific, important workflows rather than broad system integrations, companies can avoid turning post-go-live gaps into permanent hiring problems.

In the context of Singapore SMEs, the issue becomes more complex due to manpower challenges and the need for AI literacy. While the availability of an independent post-go-live partner may seem appealing, it is essential to choose a partner that complements the ERP vendor rather than replaces it. The better question to ask is: "After go-live, which important part of the business still depends on a person copying, checking, reconciling, or reformatting data by hand?"

If the answer is "nothing important," the company may not require further software development. However, if production and finance do not match, customer-specific reporting remains manual, or integrations continue to break, then the ERP implementation is merely the beginning of a new software problem.