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What Happens When Material Consumption Differs From the BOM in ERP?

HMTECH — Mon, 05 Oct 2026 19:19:57 +0000

A food manufacturer creates a Bill of Materials (BOM) for a product. The BOM shows that 1,000 units need 500 kg of raw material. During production, the team uses 525 kg. This may happen because of material loss, changes in raw material quality, or unexpected waste.

The question is not only, "Why did we use more material?" It is also, "How should the system record this difference?" In ERP, the BOM provides the planned material quantity for a Work Order. When production starts, the actual quantity issued to manufacturing is recorded through stock transactions.

If the team uses 525 kg instead of the planned 500 kg, the extra 25 kg can be recorded as actual consumption. This keeps the raw material stock and production records aligned with what was used.

What Does the BOM Actually Represent in ERP?

The Bill of Materials (BOM) represents the planned material need for manufacturing a product. It serves as a standard reference for production, costing, and material planning.

Raw materials required: The components needed to manufacture the item.
Quantity required: The standard quantity needed for the specified production quantity.
Finished product: The item being manufactured.
Production structure: Operations, workstations, and related production costs.
Multi-level BOMs: Sub-assemblies that form part of a larger finished product.

The BOM defines what should be used. Whereas Production records show what was actually used. This difference becomes important when actual consumption does not match the standard quantity defined in the BOM.

Why Actual Material Consumption Can Differ From the BOM

Differences between planned and actual material use are common in manufacturing.

Normal Production Loss: Some processes naturally cause material loss. This can happen during cutting, mixing, heating, or evaporation.
Raw Material Variation: Raw materials can differ in moisture, density, or quality. These differences can change how much material is needed.
Process Changes: Changes in machine settings, temperature, or production speed can affect material use.
Scrap and Wastage: Machine problems, damaged materials, and setup losses can lead to extra material use.
Incorrect BOM Quantities: The BOM may be based on old production data. As a result, its quantities may no longer match current production needs.

Not every variance indicates a problem with ERP. Often, the variance reflects what actually happened during production.

How ERP Records the Difference

ERP connects the planned production needs with the actual material transactions through a series of production documents. Each step has a different purpose.

1. BOM Sets the Planned Requirement
The BOM stores the standard materials and quantities required to manufacture a product. If the BOM requires 500 kg of raw material for a production quantity of 1,000 units, that quantity becomes the planned requirement for production.

2. Work Order Turns the Plan Into Production
A Work Order defines what needs to be manufactured and the quantity to be produced. The required materials are derived from the selected BOM and the production quantity. This gives the production team a standard against which actual material usage can be compared.

3. Recorded Material Consumption
During production, the quantity actually issued to production may differ from the planned quantity. The additional material can be recorded through the relevant stock transaction used in the manufacturing workflow. The actual quantity should reflect what was issued rather than being changed simply to match the original BOM quantity.

4. Inventory Updates
When the material issue is submitted, the stock transaction records the quantity actually moved from the raw material warehouse. This keeps the stock record closer to the physical movement of material.

What If the Extra Material Becomes Scrap?

When material usage increases, manufacturers also need to understand how much material became finished output and how much became scrap.
Planned Material: Standard input defined by the BOM.

Actual Material Consumed: Material actually issued for production.
Usable Output: Finished goods that meet the required specifications.
Scrap / Waste: Material that cannot be used as part of the intended finished output.
Yield: The usable output compared with the material input or production standard being measured.

This information gives the production team more context than simply seeing that 525 kg was consumed. It can help identify whether the difference came from normal process loss, excessive scrap, raw material quality, or a production issue. In ERP, scrap can be recorded as part of the manufacturing stock transaction. This keeps the material movement and resulting quantities connected to the production record.

How Material Variance Affects Inventory and Costing

Material variance can affect both inventory and production costs. For example, if 525 kg of material is used but only 500 kg is recorded, the system may show more stock than is actually available. Extra material use can also increase the actual cost of production. If this usage is not recorded, the production cost may not show the true cost of the materials used.

Actual stock transactions also affect inventory records and valuation based on the configured accounting method. Recording the actual material used in production makes it easier to review costs for a Work Order or cost centre.

For this reason, material variance should be recorded in the production process instead of being tracked separately in a spreadsheet.

What Manufacturers Should Check When Variance Keeps Happening

When the same material variance keeps appearing, ERP can help trace where the difference is coming from. The main areas to review are the BOM, Work Order, stock records, scrap, and batch data.

1. Review the Work Order
Check the BOM quantity against the actual material used in the Work Order. If the same difference appears across several Work Orders, the standard BOM quantity may need to be reviewed.

2. Check Stock Transactions
Check the Stock Entries used for material issues. The recorded quantity should match the material physically issued to production. This also helps keep raw material stock and production costs accurate.

3. Check Scrap
ERP can record scrap and production output as part of the manufacturing process. Reviewing these records can show whether extra material is being lost during a particular production stage.

4. Check UOM (Unit of Measure)
Review the item setup and UOM used for purchasing, storing, and consuming materials. Incorrect settings can cause differences between the quantity purchased and the quantity used in production.

5. Lot Records
For batch-managed materials, compare production results across different batches. If higher consumption occurs repeatedly with a specific batch, the issue may be related to the raw material.

6. Review Cost Centres
If extra material is used regularly, review the related production costs through job costing and cost centre reports. This helps show how material variance is affecting the cost of individual production jobs.

Setting Up ERP to Track Material Variance

When material variance keeps happening, checking the right ERP records is only the first step. Those records also need to be set up correctly so they reflect the actual production process. This is where the ERP implementation process becomes important. It starts with mapping how materials move through purchasing, warehouses, and finished goods. Work Orders, stock transactions, and production steps can then be configured around this workflow.

Inventory settings are also important. Items, warehouses, UOMs, and batch or lot tracking should be configured correctly. This helps manufacturers trace material from the warehouse to production and identify where differences occur. The costing side also needs to be connected to production. Job costing and cost centre reporting can help show how extra material usage affects production costs. A proper implementation also includes data migration, configuration, testing, user training, and a parallel run before going live.

Production teams can test real transactions during this stage and identify issues before the system becomes part of daily operations. With these areas set up correctly, manufacturers can compare planned material usage with actual usage without relying on separate spreadsheets.

This also helps reduce common mistakes such as changing the BOM after every production run, ignoring scrap, or tracking variance outside ERP.

Common Mistakes When Handling Material Variance

Changing the BOM Too Often: One unusual production run does not mean the BOM needs to be changed. Look for a repeated pattern first.
Ignoring Scrap: Not recording scrap makes it harder to see where extra material was used or lost.
Using Separate Spreadsheets: Tracking material variance outside ERP can separate production data from inventory records.
Ignoring Repeated Differences: Regular differences between planned and actual usage may show a problem with the BOM, production process, or raw materials.

Material consumption does not always match the BOM; that is a normal part of manufacturing. The important thing is to record the actual material used so inventory, production, scrap, and costing stay accurate. With proper ERP implementation, manufacturers can set up Work Orders and stock transactions to track these differences clearly. This makes it easier to understand why material usage changes and improve the production process over time.

How Businesses Use ERP Automation to Improve Workflows

HMTECH — Mon, 05 Oct 2026 17:06:14 +0000

Businesses handle many tasks every day. These tasks may include creating invoices, checking inventory, and processing orders. When these tasks are done manually, they can take more time and lead to errors. Different departments may also use separate tools to manage their work. This can make it harder to share information for keeping the process connected. ERP automation can help solve these problems. It allows businesses to automate routine tasks to connect different steps in a workflow.

What Is ERP Automation?

ERP automation means using an Enterprise Resource Planning (ERP) system to perform routine tasks with less manual work. An ERP system can use predefined rules to start tasks, update records, and send notifications. When a sales order is confirmed, an ERP system may automatically update inventory and create an invoice based on the configured workflow.

Manual workflows require employees to complete each step themselves. Automated workflows use system rules to handle some of these steps. ERP automation also allows different departments to work with the same business data. This can make information easier to access and reduce repeated data entry.

Why Businesses Use ERP Automation

Businesses can use ERP automation to improve daily operations in several ways.

Reduce repetitive work and data entry errors
Speed up routine processes
Improve access to information
Make workflows easier to track
Reduce delays in orders

Business Processes That Can Be Automated

ERP automation can be used across many areas of a business. The type of automation depends on the company's processes and requirements.

1. Finance and Accounting

Finance teams handle many repetitive tasks. An ERP system can create an invoice after a sales order reaches a specific stage. It can also send reminders for pending payments based on configured rules.

Invoice creation
Payment reminders
Expense approvals
Recurring transactions
Financial reports

2. Procurement

Procurement involves several steps, from identifying a requirement to placing an order with a supplier. Through ERP, a purchase request can be automatically sent to the relevant person for approval.

Purchase requests
Purchase order creation
Approval workflows
Supplier records
Reorder notifications

3. Inventory Management

Inventory teams need accurate information about stock levels and movements. An ERP system can also notify employees when stock reaches a defined minimum level. This can help businesses avoid unexpected stock shortages.

Stock level updates
Reorder alerts
Warehouse transfers
Batch and serial number tracking
Inventory reports

4. Sales

Sales processes often involve several connected steps. In ERP, a confirmed sales order can notify the next department for the manufacturing and invoicing processes.

Lead assignment
Quotation creation
Sales order processing
Invoice generation
Customer notifications

5. Manufacturing

Manufacturing businesses can use ERP automation to connect production activities with inventory and purchasing. The system can also use the Bill of Materials (BOM) to determine the required materials.

Production planning
Work order creation
Material requirements
Production status updates
Inventory updates after production

6. Human Resources

HR teams also manage many routine processes. An employee can submit a leave request through the ERP system. The request can then be sent to the relevant manager for approval.

Leave requests
Attendance records
Employee onboarding
Expense approvals
Payroll processes

What Businesses Should Consider Before Automating ERP Workflows

ERP automation should be planned around actual business processes. Businesses should consider several factors before automating a workflow.

Identify how the process currently works before changing it.
Define who should review and approve different requests.
Product, supplier, customer, and inventory data should be correct.
Employees should understand how automated workflows work.
Automated processes should be tested to make sure each step works correctly.

ERP business automation can help reduce repetitive work to improve daily workflows. It can connect different steps and allow information to move between departments. Businesses do not need to automate every process at once. They can start with repetitive tasks and expand automation as their workflows become more structured. A well-planned automation process can help businesses reduce manual errors and improve visibility across their operations.

ERPNext vs Odoo: Which One Manages Different Business Operations Better?

HMTECH — Mon, 05 Oct 2026 12:02:43 +0000

As businesses grow, keeping daily operations organized becomes more difficult. Finance, HR, and supply chains may use separate tools. This can create data silos, which can also cause delays. To manage these challenges, many growing businesses use Enterprise Resource Planning (ERP) systems.

An ERP works as a central system for a business. It brings different operations into one place. It can also automate routine tasks. ERPNext and Odoo are two well-known ERP platforms. Both help businesses manage core operations. However, they take different approaches. The right choice depends on the company’s size, workflows, and budget.

What Is ERPNext?

ERPNext is an open-source ERP platform built on the Frappe framework. It provides a range of business tools in one system. Its modules are designed to work together.

Business Functions: Accounting, Manufacturing, Payroll, CRM, and Asset Management.
Open-Source Nature: ERPNext is open-source software, available under the GNU General Public License (GPLv3).
Business Use Cases: ERPNext can suit distributors, service firms, educational institutions, and other mid-sized businesses.

What Is Odoo?

Odoo is a modular business management platform. It offers a large collection of applications. Businesses can start with the tools they need. More applications can be added as requirements change.

Business Functions: E-Commerce, Invoicing, Manufacturing, Marketing Automation, and Project Management.
Modular Approach: Businesses can select applications based on their needs. They can add more applications as they grow.
Editions: Odoo offers a free Community Edition. It also has a paid Enterprise Edition. Features and services differ between the two editions.
Business Use Cases: Odoo can suit startups, small businesses, and growing companies that prefer a modular system.

Key Differences Between ERPNext and Odoo

ERPNext and Odoo cover many of the same business areas. The main differences appear in their structure, customization, and user experience.

1. Business Management

Accounting: ERPNext supports core accounting functions. These include charts of accounts, multi-currency transactions, tax templates, and bank reconciliation. Odoo also provides accounting tools. Some advanced features depend on the selected edition.

Sales: ERPNext supports sales pipelines, quotations, purchase orders, and supplier management. Odoo provides a visual sales pipeline. It also supports quotation and invoicing workflows.

Inventory: ERPNext supports multi-warehouse tracking. It also supports batch tracking, serial numbers, Bills of Materials (BOM), and Work Orders. Odoo provides inventory management and visual tools for production stages.

HR: ERPNext includes employee management, leave management, expenses, and project management. Odoo provides HR and project tools through separate applications.

2. Customization

Development Requirements: Complex ERPNext changes can be developed with Python and JavaScript through the Frappe framework. Odoo uses Python and XML for development. Odoo Studio also allows users to make some changes without coding. Complex changes may require developer support.

Custom Fields: ERPNext allows businesses to add custom fields. It also supports approval workflows and custom document types called Doctypes.

Integrations: Both platforms can connect with external software through APIs. These integrations can support payment services, e-commerce platforms, and custom applications.

3. User Experience

Interface: Odoo uses an app-based interface with visual icons. This can make navigation easier for new users. ERPNext uses workspaces, forms, list views, and search tools.

Learning Curve: Odoo offers visual tools such as Kanban views. These can make some workflows easier to understand. ERPNext uses a structured layout. This can suit businesses with traditional workflows.

Module Navigation: Odoo users move between applications based on their tasks. ERPNext uses a unified navigation system with workspaces and search tools.

4. Integration

Scalability: ERPNext supports multi-company operations. It can also run on open infrastructure. Odoo allows businesses to add applications as they grow. Hosting and licensing options depend on the selected edition.

Payments: Both platforms can connect with e-commerce platforms, payment services, and other business tools. Available integrations may depend on the platform version or connector.

What Should Businesses Consider?

Several factors can affect the choice of an ERP system.

The ERP should support relevant tax rules, invoicing, accounting, and payroll requirements.
Local support can make ERP deployment easier. An experienced technology partner can also adapt the system to specific business needs.
Businesses should consider the availability of Python, Frappe, and Odoo developers. This can help with future maintenance and customization.
The ERP should match the company’s size and industry. It should also support its main business processes.

Industry Use Cases for Choosing the Right Fit

Different industries have different ERP needs. The right platform should support the processes that matter most to the business.

Manufacturing: Manufacturing businesses need production planning, BOM management, work orders, and production tracking.
Textile: Textile businesses often need inventory tracking for colors, fabric sizes, batches, and production stages.
Healthcare: Healthcare businesses may need patient records, appointments, billing, and pharmaceutical inventory.
Pharmaceuticals: Pharmaceutical businesses need batch tracking, inventory control, expiry management, and purchase records.
Trading: Trading businesses often need multi-warehouse visibility, purchasing, and sales order management.

Where ERPNext May Be a Suitable Option

ERPNext may suit businesses with specific operational needs.

Businesses looking for an open-source ERP platform.
Companies that want accounting, CRM, and manufacturing in one system.
Businesses that need custom fields, document structures, and approval workflows.

The suitability of ERPNext depends on the company’s processes and implementation needs.

Where Odoo May Be a Suitable Option

Odoo may suit businesses that prefer a modular approach.

Businesses that want to start with a few applications. More can be added as the business grows.
Teams that prefer visual tools such as Kanban views and app-based navigation.
Businesses that need a wide range of applications for different functions.

The right choice depends on the selected edition, customization needs, and business processes.

Both ERPNext and Odoo can manage core business operations. However, their approaches to ERP management are different. The right platform depends on the company’s workflows, budget, and customization needs. Comparing both platforms against actual business requirements can help businesses find the right fit.