Does Microsoft Power Pages support external API calls ?

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Posted on by KarimMomo

Hi,

I was wondering If Power Pages enables external API calls ?? I've read somewhere it was in Preview but can't seem to find proper documentation. If the answer is not, what are my other options and its limitations ?

Thank you

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Fubar 8,487 Super User 2026 Season 1 on at

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I believe the preview feature you mention is the ability to call a Power Pages Flow directly from the portal. https://learn.microsoft.com/en-us/power-pages/configure/cloud-flow-integration
The only secure production ready feature is to make use of the portals support of Implicit Grant Flow https://learn.microsoft.com/en-us/power-pages/security/oauth-implicit-grant-flow
Workarounds may include (but depend on exactly what you need to do),
creating an Action in dataverse and coding behind it, then calling the action it via the portals Web API
Create a Web Page that uses a Web Template that makes a FetchXML call to a dummy table, you custom code Retrieve/Retrieve multiple on the dummy table and return your restults to the Fetch call, then in the Template format the Fetch result as JSON. You then make an Ajax call to the Web Page you created, and recieve the JSON response.
Architectonic you pages so that you can do it via a realtime workflow or plugin between the form submission and loading of the next page
Calling a HTTP Request Flow via Ajax (note: this does not currently have inbuilt security so you need to find ways to secure this if you decided to it)
All the ones that invlove dataverse doing the processing, you need to be mindful that there is a 2 minute process execution timeout, so everything you do you need to be 100% confident it will be fully completed in well less than 2 mins.

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