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To access a SharePoint subsite in Power Automate, you must manually enter the subsite’s full URL because the SharePoint connector only lists top‑level sites in the “Site Address” dropdown and never shows subsites.
Even though the connector can detect libraries inside a subsite, it will not display the subsite itself, so the fix is to choose Enter custom value in the Site Address field and paste the exact URL of your subsite
(for example: https://yourtenant.sharepoint.com/sites/ParentSite/SubsiteName). Once this URL is entered manually, the “Library Name” dropdown will populate correctly, allowing you to select the Documents library or any other library within that subsite and use all SharePoint actions normally.
I hope this helps resolve the issue! If you need more specific guidance, feel free to ask.
🏷️ Please tag me @Robu1 if you still have any queries related to the solution or issue persists.
✅ Please click Accept as solution if my post helped you solve your issue and help others who will face the similar issue in future. ❤️ Please consider giving it a Like, If the approach was useful in other ways.
Happy to help
Robu 1👩💻
