Discrepancies between how Structure (buildwithstructure.com) and ExpressionEngine manage URLs can be annoying when it comes to importing data, doing redirects, letting clients loose on your site etc.

• Identifies which Structure URLs do not match the default EE URL Title
• Allows you to update all Structure Page URLs to match the default EE URL Title
• Works in EE v2 - tested in v2.10.1+

• Update default EE URL Titles to match Structure Page URLs. This is because EE URLs must be unique, whereas Structure URLs don't have to be.
• It doesn't work in EE v1
• It doesn't work in EE v3 (at time of writing Structure doesn't have a version for EE v3)

• Copy the entire structure_url_matcher folder to your system/expressionengine/third_party folder.
• Go to Addons > Modules and install Structure URL Matcher