When a child control is created within Pega Robot Studio, the system automatically persists the index at which the target was found. Subsequently when matching, Studio begins at this index to find the control.

A web developer can assign IDs to controls in a web app. You can match these controls using the Element ID match rule. This is the fastest way to match controls in a web app, particularly in very large web pages.

Within the web adapter, child controls are not matched using the full element hierarchy, because even simple web pages usually contain hundreds, possibly thousands, of elements. Instead, Robot Studio retrieves a collection of elements with the same tag as the control you are matching. For example, if Robot Studio is matching a text box, it retrieves all <input> elements to iterate and match against.