Code trials:
def send_unsaved_contact_message():
    global message
    try:
        time.sleep(10)
        browser.implicitly_wait(10)
        #input_box = (By.XPATH,"//div[text()='Type a message']")
        #input_box = (By.XPATH,"//div[@class='p3_M1']")
        pyperclip.copy(message)
        input_box = wait.until(EC.presence_of_element_located((By.XPATH,
        "(//div[@title='Type a message'])[1]"))) #//div[@class='fd365im1 to2l77zo bbv8nyr4 mwp4sxku gfz4du6o ag5g9lrv']
        #pyperclip.copy(message) # get text in clipboard 
        #for ch in message:
            #if ch == "\n":
                #action.key_down(Keys.SHIFT).key_down(Keys.ENTER).key_up(Keys.ENTER).key_up(
                    #Keys.SHIFT).key_up(Keys.BACKSPACE).perform()
            #else:
        #input_box.send_keys(ch)
        #browser.execute_script(JS_ADD_TEXT_TO_INPUT, input_box, message)  
        action.key_down(Keys.CONTROL).send_keys("v").key_up(Keys.CONTROL).perform()           
        #action.send_keys(Keys.CONTROL,"v").perform()
        whatsapp_send_button = browser.find_element(By.XPATH,
        "//span[contains(@data-icon,'send')]")
        browser.execute_script("arguments[0].click();", whatsapp_send_button)
    except Exception as e:
        print("Failed to send message exception: ", e)
        return
The above code sends half of my message. As an example when my message is:
hi
my name is setareh
this is my group link
Selenium sends my message like as follows:
hi
my name is setareh
What is the problem?
 
    