Product distributor price – how to update unitPriceDist live in UI like unitPrice?

[muulox]

Hello,

I’m working with EspoCRM 9.x (Cloud / self-hosted) and I’ve extended the product pricing logic to also handle distributor prices.

What I did:

I’m using the standard ProductPricingTypeHandler as a base and added a second set of fields for distributor price:

• listPriceDist (Currency)
• pricingFactorDist (Float)
• pricingTypeDist (Enum – same options as pricingType)
• unitPriceDist (Currency, result)
• I reuse the existing costPrice field.

This works correctly on save:
unitPriceDist is calculated and stored as expected when I save the product. The problem / question


For the standard client price, when I change e.g. pricingFactor or pricingType on the Product form:

• unitPrice is updated live in the UI (without saving),
• so there is some front-end (JavaScript) logic that recalculates it on the fly.

For my distributor price:

• the value of unitPriceDist is only updated after save (because only PHP handler runs),
• it does not update live when I change pricingFactorDist, pricingTypeDist, etc.

I’d like to have the same UX for distributor price – update unitPriceDist instantly in the Product edit view when one of the related fields changes.

My questions

1. In which JS file / view does Espo implement the live calculation for unitPrice on Product (when pricingType, listPrice, costPrice, pricingFactor change)?
2. What is the recommended way to extend this to also handle:
   • pricingTypeDist
   • listPriceDist
   • pricingFactorDist
   • unitPriceDist

Any hints (file paths, example code, best practice) would be greatly appreciated.

Thank you!