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[Also applies to v8]{class="badge positive" title="Also applies to Campaign v8"}

Use case: configure the field substitution use-case-configuring-the-field-substitution

Random field substitution lets you attribute a value from the recipient list to the seed addresses that are empty when the user uses this value in a delivery (example: name, city, etc.).

This substitution lets you save time when creating the delivery: instead of manually adding the desired value to the seed addresses, the substitution randomly recovers this value in the list of recipients targeted by the delivery and applies it to the seed addresses.

Context context

In this use case, the site My online library would like to send a discount to its clients, based on their favorite literary genre.

The delivery manager has integrated a personalization field linked with favorite genre into their email. The aim is to use some seed addresses: these seed addresses have the personalization field in their table but no value is saved there.

To use the random field substitution you must have:

Create a delivery step-1---creating-a-delivery

The steps for creating a delivery are detailed in the Create an email delivery section.

In this example, the delivery manager has created the newsletter.

Edi the seed addresses data schema editing-the-seed-addresses-data-schema

The instructions on how to modify a data schema are detailed in the section.

In this example, the seed addresses data schema takes a value created from the recipients data schema:

 <attribute label="Favorite literary genre" length="80" name="favoriteLiteraryGenre"
               type="string" userEnum="favoriteLiteraryGenre"/>

This enumeration lets the user specify the favorite literary genre of their clients.

For this data schema modification to be viewable in the seed addresses Input form, you must update it. Refer to the Update the input form section.

Configuring personalization configuring-personalization