by Slimstock · Demand & Supply Planning
AI-driven demand and supply chain planning that layers onto existing ERP systems.
Updated August 2026 · By the ERP Research Editorial Team · Independent and vendor-neutral.
Microsoft Dynamics 365 Business CentralMicrosoft Dynamics 365 Finance & Operations / Supply Chain Management
SAP
Oracle
NetSuiteSalesforceInforSlimstock develops Slim4, a supply chain planning platform that handles demand forecasting, inventory optimization, replenishment, and sales & operations planning (S&OP). Founded in 1993 in the Netherlands, the company positions Slim4 as a planning layer that connects to a company's existing ERP rather than replacing it, pulling transactional and master data from the ERP and feeding back recommended forecasts, order proposals, and stock targets. The platform is used by more than 1,700 organizations across wholesale, retail, and manufacturing.
The product is organized around several planning domains. Demand management covers statistical and machine-learning forecasting, demand sensing, and seasonality/promotion modeling across daily-to-annual horizons. Inventory management covers stock optimization, automatic replenishment, multi-echelon inventory optimization (MEIO), network balancing, and shelf-life handling for fresh goods. Supply chain planning adds supply and production planning, scenario planning, integrated business planning (IBP), and S&OP/S&OE workflows. A control-tower dashboard surfaces KPIs, exceptions, and workflow status in one view.
Slim4 is offered as a cloud-native platform, with on-premise and fully hosted options also available according to vendor and review-site descriptions. Implementation is consultant-led, and Slimstock pairs the software with its own supply chain consultants and training. The platform integrates with major ERP systems including SAP, Microsoft Dynamics, Oracle, NetSuite, and Salesforce; a published Slim4 connector exists for Microsoft Dynamics 365 Business Central. Pricing is quote-based and not publicly listed.
Demo video from the vendor's YouTube channel. Screenshots sourced from Slimstock.
Slimstock covers 29 of 62 capabilities we track in this category
47%“Not evidenced” means our research found no public documentation of this capability — the vendor may still offer it. Confirm on a demo.
How companies use Slimstock alongside their ERP — pulled from Slimstock's published customer stories, with the ERP each customer runs where they state it.
Wholesale · Panama · Enterprise
Service levels increased 10%; excess inventory reduced 10%; controlled inventory growth; shifted from reactive to anticipatory planning
Logistics · Philippines · Mid-Market
Service levels increased from 60% to 94%; inventory days reduced from 37 to 33; improved visibility across entire organization
Manufacturing · Australia · Mid-Market
Customer fill rates improved to 90%; stock investment reduced 5-7.5%; emergency freight costs significantly reduced
Wholesale · Chile · Mid-Market
Inventory reduced more than 10%; availability improved 4%; 80% of planning processes automated within 7 months
Retail · United Kingdom · SMB
Excess stock reduced by 3.4%; availability increased to 99% on top product lines; forecast review time massively reduced
Retail · United Kingdom · Enterprise
Stock value reduced by £6 million while improving service levels; 60% reduction in stock write-off
The same companies show up in our library of ERP implementation case studies — useful for seeing what the wider stack around this add-on looks like.
Summarised from each vendor's published customer stories. Figures are the vendor's own claims, not independently verified by ERP Research. See all 10 Slimstock case studies →
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Rate itPublished Slim4 connector for Dynamics 365 Business Central, listed on the Microsoft commercial marketplace (not on appsource.microsoft.com, so not classified as marketplace-certified). Slim4 is also documented for Dynamics 365 Finance & Operations / SCM.
Vendor lists SAP among supported ERP integrations; no dedicated connector documentation or marketplace listing found.
Vendor lists Oracle among supported ERP integrations; no dedicated connector documentation found.
Vendor lists NetSuite among supported ERP integrations; no dedicated connector documentation found.
Connector details independently verified against vendor marketplaces and documentation; last checked 2026-08-11.
Full Slimstock pricing breakdown — cost at 25/100/500 seats, competitor rates & FAQs
Pricing is custom and based on supply chain complexity and operational scale; not publicly listed. Get an independent shortlist with pricing guidance below.
Slimstock prices by quote, like most of this category. Here is what actually drives your number — and what to ask before you get one.
9 of the 15 vendors we track in this category publish no list price at all.
No. Slim4 is designed to sit alongside your existing ERP, pulling data from it and feeding back forecasts, order proposals, and stock targets. It adds planning and forecasting intelligence rather than replacing core ERP transactions.
Slimstock lists integrations with SAP, Microsoft Dynamics, Oracle, NetSuite, and Salesforce, among others. A published Slim4 connector is available for Microsoft Dynamics 365 Business Central.
Pricing is quote-based and not publicly listed. Quotes are tailored to supply chain complexity and operational scale; you contact Slimstock for a demo and pricing.
Slim4 spans demand forecasting and sensing, inventory optimization and replenishment, multi-echelon inventory optimization, supply and production planning, scenario planning, and S&OP / IBP, with a control-tower dashboard for KPIs and exceptions.
Yes. Slim4 is described as a cloud-native platform, with on-premise and fully hosted deployment options also available according to vendor and review-site descriptions.
Before you commit to Slimstock, see how it sits against the 15 demand & supply planning systems we track — on capability, ERP integration depth and what each one actually charges for.
Demand & Supply Planning Buyer's Guide
15 systems compared · 2026
ERP Research
Slimstock doesn't publish a price. Tell us your ERP, seat count and must-haves and we'll come back with an independent view of what it should cost you — and which alternatives are worth quoting alongside it.