Please register the YCloud background first, add WABA/number through the YCloud background, and then synchronize to SalesSmartly through the YCloud background API:
https://www.ycloud.com/console/#/entry/register
If you have registered your YCloud account, please log in first:https://www.ycloud.com/console/#/entry/login

Open [Verify] – [Getting started] to view and copy the API Key, and then fill in the SalesSmartly background.
