When a URL has a hash change, it means the URL uses the symbol # to point the browser to a specific spot on the page or website. For example, a URL with hash changes can be used on this page to link to a specific spot lower on the page.

When you use your pop-up placement settings, you can create rules that target URLs or parts of a URL for deciding where on your website a pop-up can appear.

If URLs with hash changes are included in your placement rules, this can cause abnormal behavior with your pop-up.

Each pop-up can use an option called exclude hash changes in URL on mobile devices to avoid targeting URLs that have hash changes. This option isn't required for all mobile pop-ups - we recommend trying the option only if you see a pop-up triggering in an odd position or incorrect timing on mobile devices.