topic Re: Attachments() Function in Web Map Symbology in ArcGIS Online Questions

Attachments() Function in Web Map Symbology

Tim-Woodfield — Fri, 29 Dec 2023 12:47:24 GMT

I am trying to set up an arcade expression in the layer symbology that will differentiate features with and without attachments. The Count(Attachments($feature)) part works great in a popup attribute expression and returns the necessary values but I am getting an error when trying to use the same code in the symbology expression. It is saying 'Attachments' is not defined.

Here's my code:

If(Count(Attachments($feature)) > 0) { // if count is greater than zero there are attachments return 'Has Attachments' } else { // otherwise the feature has been inspected but missing photos return 'No Attachments' }

The funny part is, if I click run to test, it gives me the correct output but the Done button is grayed out.

Re: Attachments() Function in Web Map Symbology

rwrenner_esri — Fri, 29 Dec 2023 19:15:41 GMT

I'm seeing the same thing in Map Viewer on a layer with attachments enabled. I'd recommend opening a tech support ticket to get this addressed.

Based on what I'm seeing in the blog post below, it appears using Attachments() for symbology did work at one point in Map Viewer Classic but it no longer seems to work there either (returns "attachments is not available").

https://www.esri.com/arcgis-blog/products/arcgis-online/mapping/visualize-your-attachments-in-arcgis-online-with-arcade/

Re: Attachments() Function in Web Map Symbology

Tim-Woodfield — Fri, 29 Dec 2023 19:44:41 GMT

Thank you for the feedback! I'll submit a ticket

Re: Attachments() Function in Web Map Symbology

DarraghOSullivan — Mon, 14 Apr 2025 06:15:43 GMT

Was this ever resolved? I'm finding the same issue ...

Re: Attachments() Function in Web Map Symbology

AlainaEllis1 — Thu, 24 Jul 2025 15:40:54 GMT

Map Viewer still doesn't allow for the Attachments field to be used in symbology; however, I have begun creating a field called something like "ItemsAttached" and calculating that field in AGOL using Arcade to say 0 if there are none and then 1 for a yes.

Here is the arcade that I use when calculating:

var hasAttachments = Count(Attachments($feature)) > 0;

IIf(hasAttachments, 1, 0);