MT-18278 Flows support for Promotions Builder (#328)

Author: dazadep

changelog/2024/2024-11-05-changelog.md

@@ -0,0 +1,11 @@
+---
+title: 'Added Flows support for Promotions Builder'
+date: '2024-11-05'
+tags: ['Commerce Manager', 'Promotions Builder']
+hide_blog_post_date: false
+---
+
+**MINOR** We have introduced Flows support for Promotions Builder that allows users to create custom fields for promotions. 
+For API, see [The Promotions Builder Custom Fields API](/docs/promotions-builder/promotions-builder-api/promotions-builder-api-overview#the-promotions-builder-custom-fields).
+
+For Commerce Manager, see [Editing custom fields in a promotion builder](/docs/commerce-manager/promotions-builder/creating-a-promotion-in-promotions-builder#editing-custom-fields-in-a-promotion)

docs/commerce-manager/promotions-builder/creating-a-promotion-in-promotions-builder.mdx

@@ -203,6 +203,16 @@ You can duplicate an existing promotion and reuse its details as required in a n
 
     The duplicated promotion opens. Make the necessary updates, then click **Create Promotion** to save the new promotion.
 
+## Editing Custom Fields in a Promotion
+In order to use custom fields in Promotions Builder, you need to create flows in the store. See [Creating FLows](/docs/commerce-manager/flows/flows) for how to create flows. The **slug** value for promotions builder is **rule-promotions**.
+Once you have created the flows and field, then you can edit the custom fields in promotions builder.
+
+1. In the promotions builder editing page, locate the **Custom Fields** at the bottom of page.
+1. Expand the section.
+1. Edit the fields.
+1. Click **Save** to save the changes.
+
+
 ## Related Resources
 
 - [Rule Promotions API](/docs/rule-promotions/overview)