There seems to be no documentation on how to delete Survey123 attachments. Is it actually feasible?

Is deleting the complete feature layer record required/necessary? (and if so, how can one be sure that the attachment was deleted, since the link to it was deleted?!)

Can the survey record be retained, but the attachment & relationship deleted?

Edit: My surveys and their attachements are stored in an ArcGIS Online Feature Service.

2 Answers 2


According to Esri github community issue page, they have provided a way to do this:

Once submitted, photos will be stored as geodatabase attachments, which can be deleted from the ArcGIS Online Map Viewer and ArcGIS Pro

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Also, to add to this response, Esri on it's survey123 help page or update survey, does mention

Can I modify an existing survey? Before you publish a survey, you can modify the survey, such as changing the question label, adding questions, reordering questions, or deleting questions.

Once a survey is published, you can make limited modifications to it. Edits that do not require changing the schema of the feature service can be made without issue.

  • 1
    you can delete GDB attachments in Catalog as well.
    – NULL.Dude
    May 31, 2017 at 14:09

Deleting attachments from a ArcGIS Online Feature Service that stores Survey123 features is feasible by interacting with the service URL. Carmel provided a working answer on Geonet, here.

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