Hi @varun
We don’t have that feature at the moment, webhooks need to be registered on one account at a time.
I will submit a Feature Request for this to be added, but for now it should be done on each of the customers.
The reason it was implemented that way is because most 3PLs need their customer’s webhook to get trigger into their respective Stores, and not one specific store. Also, webhooks trigger at the Customer’s account level because in that account is where products and orders are created.
What I could request is to have the ability to subscribe ALL the child accounts to a specific webhook.
Let me know if this will work for you.
Thanks again!
Tom