To successfully execute the command generated below (especially those with custom names and enchantments) in Minecraft **Java Edition (1.13+)**, follow these steps:

1. ✅ Step 1: Enable Cheats/Commands

   You must have the ability to run commands. Ensure your world settings have **Cheats enabled**. If you are on a server, you must have **Operator (OP) status**.

2. ✍️ Step 2: Copy the Generated Command

   After generating, click the "Copy Command" button. The command will include the entire custom data structure (NBT) enclosed in curly braces **`{...}`**.

   Example: /give @p diamond_sword{display:{Name:'{"text":"Legend"}'}} 1

3. ⬆️ Step 3: Paste and Execute

   Paste the command string directly into the chat box ($T$ or $/$ by default) or a Command Block and press **Enter**.