There are two different java based applications.

Application1 and Application2

Suppose a user has registered in application1 and just after clicking on submit,

the user must have checked in application2, whether the user is present over there or not, if not then the user should have registered in application2.

And the process should be automated.

like when one user is inserted in application1 then right after submission if the user is not present in application2 then the user must be inserted.