Docs: note Smart Limit requires an approval workflow

Co-authored-by: truph01 <truph01@users.noreply.github.com>

Author: MelvinBot

docs/articles/new-expensify/expensify-card/Set-Up-and-Manage-the-Expensify-Card-UK-EU.md

@@ -73,7 +73,7 @@ After your workspace is approved and a spending limit has been assigned to your
 3. Select the member who will be assigned the card.
 4. Choose **Virtual** or **Physical**.
 5. Choose a spending limit type:
-   - **Smart limit** – Spend up to a threshold before approval is required.
+   - **Smart Limit** – Spend up to a certain amount before requiring approval. This option requires an approval workflow, so it appears disabled if your workspace’s approvals are set to **Optional**. Enable approvals to select it.
    - **Monthly limit** – Limit renews each month.
    - **Fixed limit** – Spend until the limit is reached.
    - **Single-use (virtual only)** – Expires after one transaction.

docs/articles/new-expensify/expensify-card/Set-Up-and-Manage-the-Expensify-Card-US.md

@@ -60,7 +60,7 @@ You can issue virtual or physical cards to employees:
 3. Select the employee
 4. Choose **Virtual** or **Physical**
 5. Choose a limit type:
-   - **Smart limit**: Spend up to a threshold before needing approval
+   - **Smart Limit**: Spend up to a certain amount before requiring approval. This option requires an approval workflow, so it appears disabled if your workspace’s approvals are set to **Optional**. Enable approvals to select it.
    - **Monthly limit**: Limit renews monthly
    - **Fixed limit**: Spend until the limit is reached
    - **Single-use (virtual only)**: Expires after one transaction