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Documentation Index

Fetch the complete documentation index at: https://docs.m3ter.com/llms.txt

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Custom Fields in m3ter allow you to store custom data in the form of number or string values against m3ter entities in a way that does not directly affect the normal working operation of the m3ter platform. Having this capability to store data in a free-hand fashion can prove very useful in helping you to meet specific usage-based pricing and other operational business use cases. However, you can exploit the values stored on Custom Fields in a more direct way by referencing them in Derived Field and Compound Aggregation calculations. Given the key role these calculations can play when implementing usage-based pricing schema, any Custom Fields you reference will then affect how the platform behaves. Referencing Custom Field values in your calculations offers a much wider scope of options when it comes to resolving complex usage-based pricing use cases. Custom Fields can be added to the following entities at Organizational level:
  • Organization
  • Account
  • AccountPlan
  • Aggregation
  • Compound Aggregation
  • Meter
  • Product
  • Plan
  • PlanTemplate
  • Contract
These all follow the same pattern - a new (optional) field is available on the entity request and response bodies called “customFields” which is a object in this format: 
"customFields": {
		"exampleCustomField1": 7.1,
		"exampleCustomField2": "stringValue"
}
The value for a Custom Field can be a string or a number.

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Using Custom Field values in calculations

  • You can add Custom Fields at two levels - the Organization level and the individual entity level.
  • The Organizational level field provides a default value and must be added if you want to also add a Custom Field of the same name at the corresponding individual entity level. If you reference the Custom Field in a calculation, the value for the individual entity level field is used. If no field is defined at individual entity level, then the Organization level field value is used.

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Important: Constraints and Exceptions

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Custom Fields at Organization Level

Currently, you cannot create Custom Fields at the Organization-level for the following enitites:
  • Plan Group
  • Balance
  • Balance Transaction Schedule
  • Balance Charge Schedule
Therefore you cannot reference the Custom Fields values created at the individual entity level for these entities in your Derived Field or Compound Aggregation calculations.

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Derived Field Calculations

You can only reference Custom Fields for the following entities:
  • Organization
  • Meter
  • Account
However, if you are using Meters belonging to a specific Product, that is, not Global Meters, you can also reference Custom Fields added to a Product in Derived Field calculations.

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Compound Aggregation Calculations - Meter Custom Fields

The value of the Organization level Meter Custom Field will always be used, even if you have defined a corresponding field at the individual Meter level. See Working with Custom Fields in the m3ter documentation for more information.