ignore an ok box and continue

Hi first time using this software, 



I have a test that has a data loop in it, perfoming actions on a web based app, for the first record in the loop there is an additional pop up box that i need to click ok to continue, for the rest of the records in the loop this box does not appear but the test run stops at that point waiting for it to appear.



I assume there's some propertie to say ignore this step and carry on if the prompt does not appear but cant find it?



can anyone help please ?