How Does ERP Help With Raw Material Planning?

Raw material planning is one of the most important parts of manufacturing control.

If material is short, production stops. If material is overbought, cash gets blocked. If the wrong grade, size, batch, or component is purchased, quality and delivery suffer. If purchase finds shortages too late, the factory pays through overtime, emergency buying, delayed dispatch, and customer pressure.

Many manufacturers do not struggle because they do not know their materials. They struggle because raw material planning depends on many moving parts: sales orders, forecasts, BOMs, inventory, purchase orders, supplier lead times, production schedules, minimum stock levels, rejected material, and material already reserved for other jobs.

ERP helps by connecting these moving parts.

Instead of planning raw material from memory, spreadsheets, or last-minute calls, ERP gives the team a structured view of what is needed, what is available, what is short, what is already ordered, and when material should arrive.

Quick Answer

ERP helps with raw material planning by connecting BOMs, inventory, production demand, purchase orders, supplier lead times, reorder levels, work orders, and material consumption. It calculates what material is required, checks available stock, identifies shortages, suggests purchase requirements, tracks pending orders, and helps prevent production delays.

ERP raw material planning helps answer:

• What raw material is needed for upcoming production?
• How much stock is available?
• What is already reserved for other jobs?
• What material is short?
• What purchase orders are pending?
• When will material arrive?
• Which supplier is delayed?
• Which items are overstocked?
• What material is moving slowly?
• Can production start safely?

The goal is to plan before shortage becomes a crisis.

Why Raw Material Planning Is Hard Without ERP

Manual raw material planning often depends on spreadsheets and experience.

A planner checks sales orders. Production shares expected jobs. Stores sends stock reports. Purchase checks pending orders. Someone compares BOMs manually. Someone else remembers that one material is reserved for another urgent order.

This creates gaps.

Common problems include:

• Stock records do not match physical stock.
• Material is shown available but already committed.
• BOMs are outdated.
• Purchase orders are delayed but production does not know.
• Lead times are guessed.
• Minimum stock levels are not reviewed.
• Rejected material is counted as usable stock.
• Slow-moving material blocks cash.
• Production starts and later discovers shortage.

ERP reduces these issues by creating one connected planning view.

ERP Uses BOMs to Calculate Material Needs

The bill of materials is the starting point for raw material planning.

ERP uses BOMs to calculate what material is required for a production quantity.

For example, if one finished product requires two units of a component and the production plan is 500 units, ERP calculates a requirement of 1,000 units. It can also consider scrap factor, batch size, alternate material, and sub-assembly needs if configured.

This is much more reliable than manual calculation.

But BOM accuracy matters. If the BOM is wrong, ERP planning will be wrong.

That is why manufacturers must keep BOMs updated and approved.

ERP Checks Available Stock

After calculating requirement, ERP checks available stock.

A good system does not only show total stock. It should show usable stock.

ERP can distinguish:

• Available stock
• Reserved stock
• Stock issued to production
• Quality hold stock
• Rejected stock
• Stock by location
• Batch or lot-specific stock
• In-transit stock
• Pending receipt

This prevents false confidence.

If the system shows 1,000 kg in stock but 700 kg is already reserved and 100 kg is under quality hold, production cannot use all 1,000 kg.

ERP makes this visible.

ERP Identifies Shortages Early

Material shortage visibility is one of the biggest benefits.

ERP compares demand against available and incoming stock.

It can show shortage quantity before production starts.

This allows purchase and planning teams to act early:

• Raise purchase order
• Expedite vendor
• Transfer stock from another location
• Reschedule production
• Use approved substitute material
• Inform sales about delivery risk

Early shortage visibility reduces last-minute firefighting.

ERP Connects Raw Material Planning With Purchase

Raw material planning should not stop at identifying shortage.

ERP connects shortage to purchase action.

It can help generate purchase requisitions or purchase orders based on demand, reorder levels, lead times, and vendor rules.

Purchase teams can see:

• Required material
• Required date
• Suggested quantity
• Preferred vendor
• Last purchase price
• Pending purchase orders
• Expected delivery
• Vendor delays

This helps purchase become proactive.

ERP Considers Supplier Lead Time

A material needed tomorrow is already late if supplier lead time is ten days.

ERP can store lead time by item or vendor.

This helps planning by showing when purchase action must happen.

For example, if production needs material on the 20th and vendor lead time is seven days, the purchase requirement should be raised earlier.

Lead time visibility helps avoid unrealistic production schedules.

ERP Helps Maintain Reorder Levels

Some materials are used regularly and should not be planned only order by order.

ERP can support minimum stock, maximum stock, reorder point, safety stock, and reorder quantity.

This is useful for:

• Common raw materials
• Fast-moving components
• Consumables
• Packaging items
• Maintenance spares
• Standard bought-out parts

Reorder levels help prevent shortages without overbuying.

But they must be reviewed regularly based on usage and lead time.

ERP Tracks Material Consumption

Planning improves when actual consumption is recorded.

ERP can track material issued to work orders and compare planned versus actual consumption.

This helps identify:

• Excess consumption
• Scrap
• Process loss
• BOM inaccuracies
• Wastage
• Rework usage
• Material substitution

This data improves future planning.

If actual consumption is consistently higher than BOM consumption, the company should investigate.

ERP Reduces Overbuying

Without reliable data, purchase teams often buy extra to stay safe.

This creates excess inventory and cash blockage.

ERP reduces overbuying by showing real demand, current stock, pending purchase, and consumption history.

The business can make more confident purchase decisions.

Better planning does not mean keeping zero stock. It means keeping the right stock.

ERP Supports Multi-Location Material Planning

If a company has multiple locations, ERP can show stock across plants and warehouses.

This helps avoid buying material at one location while the same material sits unused at another.

ERP can support stock transfer between locations when appropriate.

This improves cash efficiency and production readiness.

Where AICAN Optiwise Fits

AICAN Optiwise helps manufacturers improve raw material planning by connecting inventory, purchase, production, BOMs, work orders, cost estimation, quality, shop-floor tracking, reports, IoT, and AI agents.

Optiwise can support:

• BOM-based material planning
• Inventory visibility
• Low stock alerts
• QR-based stock movement
• Purchase planning
• Vendor visibility
• Material issue to work orders
• Production-linked consumption
• Quality hold visibility
• AI alerts and summaries for shortages and delays

Explore AICAN Optiwise and About AICAN.

Practical Example

A manufacturer plans production for next week. Without ERP, purchase checks a stock sheet and believes material is available. Production starts, then discovers that some stock is reserved for another urgent job and some is under quality hold.

With ERP, the system shows usable stock, reserved stock, pending purchase, and shortage quantity before production starts. Purchase acts early. Production schedule is adjusted. The customer receives a more realistic commitment.

That is raw material planning in practice.

FAQ

How does ERP calculate raw material requirement?

ERP uses BOMs, production quantity, current stock, reserved stock, pending purchase, and lead times to calculate material requirements and shortages.

Can ERP prevent material shortages?

ERP can help prevent shortages by identifying them early, but it depends on accurate BOMs, stock updates, purchase discipline, and supplier reliability.

Can ERP reduce excess inventory?

Yes. ERP improves demand visibility, consumption tracking, reorder levels, and purchase planning, helping reduce unnecessary overstock.

What data is needed for raw material planning?

You need accurate BOMs, item masters, stock levels, lead times, reorder levels, purchase orders, production plans, and material consumption data.

Can ERP plan raw material across multiple locations?

Yes. ERP can show stock by plant or warehouse and support inter-location transfers.

How does AICAN Optiwise help raw material planning?

AICAN Optiwise connects BOMs, inventory, purchase, production, work orders, quality status, QR tracking, AI agents, and reports to improve material planning visibility.

Founder’s Note

Raw material planning looks simple until the factory is waiting for one missing item.

That missing item can stop a machine, delay a customer, create overtime, and disturb the whole week.

At AICAN, we believe manufacturers should see shortages before they become stoppages. That is what connected planning is for.

Final Thought

ERP helps raw material planning by turning scattered information into a clear requirement view.

When BOMs, stock, purchase, production, and lead times are connected, manufacturers can buy better, plan better, and produce with fewer surprises.