WebService connector rule add error

@jrossicare thanks for your response. I am successfully able to attached beforeRule to my webservice. I think now I am on last step i.e. to test create account but I found one issue. In my test webservice there is no entitlement and somewhere I read that there should be some entitlement to test webservice, so I added one more http operation for entitlement aggregation. When I did entitlement aggregation, in ccg log I saw one error:

"message":"No paging steps defined for endpoint ''Entitlement Aggregation'', terminating paging...",

I did some documentation read and found that I need to mention something in paging section, so I tried with this:

TERMINATE_IF $responseHeaders.link.next$ == NULL

$endpoint.fullUrl$ = $responseHeaders.link.next$

Now the error message is :

"message":"PAGING: Termination triggered! Unable to evaluate paging step: $endpoint.fullUrl$ = $responseHeaders.link.next$",

but still its not fixed.

Could you please suggest on this.