📋 Use Case

You have a repeatable product selection question group and need to prevent users from selecting the same product multiple times.
 

✅ Pre-Requisites

Before you begin, confirm the following:

• Familiarity with Select and Add button functionality.

• Knowledge of product filters.

• A multiple-choice text list question with all possible values pre-selected by default.

• A product attribute (e.g., SKU) exists for each product, matching the text list values to enable exclusion once selected.
   

🧭 Step-by-Step Instructions

1️⃣ Create a Concatenated SKU Field in the Repeatable Group

1. In your repeatable question group, add a Text question.

2. Reference the product attribute you want to exclude, for example:

   %product_selection.sku%;

3. Include a semicolon and a space (; ) at the end.

4. Name this field:

   product_selection.sku_concat

2️⃣ Aggregate SKUs Outside the Repeatable Group

1. Outside the repeatable group, create a Text answer.

2. Reference the concatenated SKU field you created in Step 1:

   %product_selection.sku_concat%

3. Name this field:

   outside_repeatable.sku_concat_aggregation

3️⃣ Configure the Text List with Exclusion

1. Outside the repeatable group, create a Text List answer with all values pre-selected.

2. Enable Multi-selection.

3. Enable the Exclude filter and reference your aggregated SKU:

   [outside_repeatable.sku_concat_aggregation]

4️⃣ Verify the Configuration

• Confirm your outside group now contains:

  1. outside_repeatable.sku_concat_aggregation (aggregated SKUs).

  2. text_list_with_all_values_and_exclude (values with the exclusion filter).

🏁 Result

When users select products, already-selected SKUs are dynamically excluded from the available options. This prevents duplicates and keeps your product selection process clean and efficient.