Not recommend but you can achieve the same in sql identify your model ((user ID ) then go to model_has _role then create a new request or duplicate one you find there add model ID and Role ID (2 for delivery man) ; after that the vendor will be able to connect to the delivery app with the same account and don’t forget to assign a store to his new delivery role
since the beginning I’m doing this never face any issue - I’m using foodoma as grocery so some vendor want to deliver their goods by themselves