BOM Rules

BOM Rules in ianaiERP allow you to create dynamic Bills of Materials with conditional logic and automated component selection. This powerful feature enables flexible manufacturing configurations that adjust based on the attributes of your built items.

Overview

• BOM Rules automate the process of determining which components are included in a BOM.
• Rules can filter items based on various criteria and calculate quantities dynamically.
• This feature is especially useful for configurable products or those with multiple variations.

Rule Expression Format

BOM Rules use a structured format with conditions, dynamic item filters, and quantity calculations.

Conditions Format

Conditions use the following syntax:

label|operator|value;label|operator|value;...

Where:

• label is the attribute or option of the built item
• operator is the comparison method
• value is the criteria for comparison
• ; separates each condition

Special characters | and ; are reserved for syntax and cannot be used as key values.

Example:

product_name|=|Shoes;size|>=|200;is_available|=|true;category|in|clothing,shoes;discount|blank;

Supported Operators

Operator	Description	Format	Applicable Value Types
Equal	Exact match	=	text, number, date, boolean, list
NotEqual	Not matching	!=	text, number, date, boolean, list
Blank	Is empty	blank	text, number, date, list
NotBlank	Is not empty	not_blank	text, number, date, list
GreaterThan	Greater than	>	number, date
GreaterThanEqual	Greater than or equal	>=	number, date
LessThan	Less than	<	number, date
LessThanEqual	Less than or equal	<=	number, date
Contains	Contains text	contains	text
NotContains	Doesn't contain text	not_contains	text
StartsWith	Starts with text	starts_with	text
NotStartsWith	Doesn't start with text	not_starts_with	text
EndsWith	Ends with text	ends_with	text
NotEndsWith	Doesn't end with text	not_ends_with	text
In	Value in list	in	list
NotIn	Value not in list	not_in	list

Dynamic Item Filters

Dynamic item filters let you automatically select BOM components based on criteria:

Example:

filter_by_type(INVENTORY);
filter_by_category(원자재);
filter_by_name(starts_with|{방향});
filter_by_sku(=|ABCD);
filter_by_attribute(number|가로|=|12+{FIX창_유리홈});
order(desc|name);
order(asc|attribute|가로);
order(asc|attribute_calculation|{가로}3);

Where:

• filter_by_* functions create filter conditions
• order() functions determine sorting order
• Variables in curly braces {xxx} reference the built item's attributes or options

Example:

filter_by_type(INVENTORY);filter_by_category(원자재);order(desc|name);order(desc|sku);
filter_by_name(starts_with|보강판);filter_by_attribute(number|가로|=|12+{FIX창_유리홈});order(asc|attribute_calculation|{가로}3);

Quantity Calculations

Quantity calculations allow you to dynamically adjust the quantity of BOM components:

Dynamic Quantity Calculation

Quantities can be expressed as static values or dynamic calculations:

• Static: 100
• Simple addition: 100+{quantity}
• Formula with multiple variables: {width}*{height}/100

Where variables in curly braces {xxx} reference the built item's attributes or options.

Creating BOM Rules

To create a BOM Rule:

1. Navigate to Manufacturing > BOM in the main menu.
2. Find and select BOM relates to the assembly item for which you want to create a rule-based BOM.
3. In the BOM detail view, Open the BOM Rules tab.
4. Create rule-based components.
5. Add your rule expressions following the formats described above.

Best Practices

1. Test your BOM rules with various configurations to ensure they produce the expected results.
2. Use clear and meaningful attribute names in your rules for better readability.
3. Start with simple rules and gradually add complexity as needed.
4. Document your rule logic separately for future reference.
5. Regularly review and update BOM rules when product specifications change.

Related Features

• Bill of Materials (BOM)
• Items
• Builds

For more detailed information on advanced BOM rule techniques and optimization, please refer to the specific sections in this documentation.