How to extend Calculate Pricing Charges algorithm to execute Promotions only, and skip Discounts

Summary:

How to extend Calculate Pricing Charges algorithm that in case promotion exists, executes Apply Sales Promotion only, and skips Apply Discounts.

Content (please ensure you mask any confidential information):

The clients request is that if promotion applies for an item, system should only apply promotional discounts and not others discount.

How to customize Calculate Pricing Charges algorithm to execute standard discounts only in case when promotion does not exist.

Version (include the version you are using, if applicable):

25C

Code Snippet (add any code snippets that support your topic, if applicable):