As we are always striving to ensure the most reliable and up to date environments, there will be a maintenance on our WhatsApp for Business Software between the 5th and 9th of December.
This is a requirement from WhatsApp / Facebook. There should be a minimal downtime (1 minute) when the change is made. Unfortunately we cannot confirm when exactly your number will be migrated during this time, but we will do everything possible to ensure as little disruption as possible.
Once you have been migrated to the new software, your end clients may notice a Change of Security Code in their WhatsApp client. This is nothing to worry about and is expected.
More information around the Security Code change can be found at: https://faq.whatsapp.com/general/security-and-privacy/security-code-change-notification/?lang=en