Why is the button for SMS forwarding on iphone6 missing?

1. First, please find the message you want to forward and press it with your finger.

2. Then a menu of options will pop up above the message, and click the "More" option.

3. Then select this message, and you can see that the small circle on the left side of the message is ticked.

4. If you want to forward multiple messages, just click on the small circle to the left of the message. Then click the "Forward" button in the lower right corner of the screen.

5. Next, is this interface familiar? The system will automatically take the message we selected before as the new message content. For example, select a contact in the address book here, and then click the+button.

6. Then select the contact person who wants to forward the short message in the address book.

7. Then click the "Send" button.