Update create-plans.mdx

Author: clairekinde11

src/content/docs/billing/manage-plans/create-plans.mdx

@@ -30,10 +30,11 @@ Remember you can create one charge or feature that can be used and redefined acr
 
     ![Add plans window](https://imagedelivery.net/skPPZTHzSlcslvHjesZQcQ/a8a237d5-c242-45dc-453e-a7ad66e33a00/public)
 
-4. Choose whether the plan is for **Organizations** or **Users**, or select the **Group** the plan belongs to. Only one of these options will appear.
-5. Give the plan a **Name** (e.g. `Free`), a **Description**, and a **Key** for referencing the plan in your code. This is the name that will also appear in the pricing table (if you use one).
-6. Select a **Default currency**. This field only appears if one has not been set. You can change this later in **Settings > Billing**.
-7. Select **Save**.
+4. Choose whether the plan is for **Organizations** or **Users**, or select the **Group** the plan belongs to. Only one of these options will appear. You cannot change these selections later.
+5. Give the plan a **Name** (e.g. `Free`), a **Description**. This is the name that will also appear in the pricing table (if you use one).
+6. Give your plan a **Key** for referencing in your code. This cannot be changed after a plan is published.
+7. Select a **Default currency**. This field only appears if one has not been set. You can change this later in **Settings > Billing**, but only before any of your plans are published.
+8. Select **Save**.
 
 ## Add a subscription fee or fixed charge to a plan
 
@@ -54,16 +55,23 @@ You need to create a $0.00 charge for Free plans. This ensures the plan is added
 
         </Aside>
 
-    2. If this is a new charge, give the charge a name, e.g. `Base subscription fee`. If you plan to use this charge for other plans, make the name generic. 
+    2. If this is a new charge, give the charge a name, e.g. `Base subscription fee`. If you plan to use this charge for other plans, make the name generic. This cannot be changed later.
 2. Add a **Line item description**. This appears on the customer invoice, so might be more specific than the name, e.g. `Base subscription - Pro plan`.
+
 3. Set the price. (You may be asked to set a default currency if you haven’t already).
 4. Select **Save**.
 5. Select **Save draft**.
 6. Repeat from step 1 for each fixed charge you want to add, or start adding features.
 
 ## Add features (entitlements) to a plan
 
-Features describe the individual functions or entitlements that users get with their plan. These can be metered (chargeable) or unmetered (included).
+Features describe the individual functions or entitlements that users get with their plan. These can be of the type metered (chargeable) or unmetered (included).
+
+<Aside type="warning">
+
+You cannot change the Name, the Key or the Type of feature once you have created it. If you make an error, delete the feature and add a new one. 
+
+</Aside>
 
 1. Select **Add feature**.
 
@@ -72,7 +80,7 @@ Features describe the individual functions or entitlements that users get with t
 2. To add a new feature, select **New unmetered** or **New metered**, then select **Next**. The **Add feature** window opens.
 3. Enter a **Feature name**. Be sure to use something generic if you plan to use this feature again, e.g. `Included seats`.
 4. Enter a **Description**.
-5. Enter a **Key** for referencing the feature.
+5. Enter a **Key** for referencing the feature. 
 6. If you selected a unmetered feature, select **Save**. You’re done. Repeat from step 1 to add more features. 
 7. If you selected a metered feature, complete the rest of the details: