U+ Bank uses the always-on outbound approach to send outbound messages on different channels such...

U+ Bank uses the always-on outbound approach to send outbound messages on different channels such as email. SMS, and push notifications. There are a variety of action flow patterns in use to meet various business and channel integrations requirements.

Due to technical reasons, the bank wants to temporarily suspend sending outbound messages and Instead write the selected customers and action details to a database table for later offline processing.

What is the most efficient way to meet this requirement?