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ERP Software Selection Criteria: Off-the-Shelf or Custom?

A guide for enterprise buyers choosing between off-the-shelf ERP (SAP, Logo, Mikro) and custom ERP.

2026-04-146 min

Three questions that may demand custom ERP

1) Does off-the-shelf require 30%+ customization? 2) Are there processes that create unique competitive advantage? 3) Is your team turning the off-the-shelf into 'bad use'? Two+ yes → custom ERP is economical.

Off-the-shelf ERP (SAP, Microsoft Dynamics, Logo, Mikro) fits a general process; for mid-market specialized needs, it leads to 'driving a tank where a bicycle works.'

Module-based incremental release is the healthy path

ERP isn't a 'full-package delivery' project — module-by-module incremental release. Accounting + stock first, then sales + CRM, then procurement + manufacturing. First module ships in 6–8 weeks.

This approach reduces product risk (each released module is testable separately) and brings early value.

Compliance and regulatory follow-up factors

In Turkiye, e-invoice (GIB), e-archive, e-waybill are standard integrations. Tax regulation (VAT, OTV) follow-up is continuous — when new regs land, the ERP must update.

With off-the-shelf, regulatory follow-up sits with the vendor; with custom, it sits with your team. Monthly support packages from us cover regulation tracking; this hybrid often works best.

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