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Resources on ERP systems — custom enterprise resource planning for manufacturing, procurement, inventory, and operations workflows.
5 posts
SAP and Oracle ERP customisation costs $150-$300/hour for ABAP or PL/SQL development. Most mid-market manufacturers spend $200,000-$500,000 on customisations that still do not match their actual workflow. At that price, building a custom ERP module around the specific process that does not fit is often cheaper than forcing SAP to do something it was not designed for.
Custom inventory management software is the right choice when your inventory involves non-standard units, location-specific rules, or integration requirements that force you to maintain spreadsheets alongside your inventory system. The spreadsheet is the signal that the off-the-shelf tool does not fit.
A custom warehouse management system makes sense when your warehouse operations involve non-standard workflows — cross-docking, multi-temperature zones, custom picking algorithms, or compliance requirements — that off-the-shelf WMS cannot model without heavy workarounds.
SAP Business One costs $659K-$1.3M over five years for a 50-user manufacturer. A custom ERP for the same scope: $309K-$640K. Here's the full cost breakdown, including the seven hidden categories vendors don't quote.
SAP S/4HANA implementation for a mid-market manufacturer costs $500K-$2M and takes 18-36 months. A custom ERP for the same operation costs $50K-$200K and deploys in 16-24 weeks. Here is when each path makes sense.
