19. Why my Bulk SMS API couldn’t send my Bulk SMS?

Please check the followings:

  1. Make sure you are writing your username and password correctly. Username and password are case sensitive.
  2. Check the receivers numbers, please put (00) instead of (+) for country codes and make sure the receivers numbers are valid and connected.
  3. Check your internet connection.

For further information, please contact our bulksmsonline.com support team.