topic Cannot Add Duplicate Field Error in Feature Layer in ArcGIS Online Questions

Cannot Add Duplicate Field Error in Feature Layer

MeleKoneya — Thu, 02 Jan 2025 23:59:36 GMT

Hello,

I have an ArcGIS Online Feature Layer that I wanted to add a field to.

I did add a new field, but didn't see that it was added.

Now when I try to add it, I get this message, but again it is not there at all.

Column names in each table must be unique. Column name 'Demob' in table 'db_13096.user_13096.COS_Event_Tracking_Enriched_SFD_LKL' is specified more than once.

Thank you for any suggestions.

Mele

Re: Cannot Add Duplicate Field Error in Feature Layer

EmilyGeo — Fri, 03 Jan 2025 20:50:52 GMT

Hi @MeleKoneya,

I am unable to reproduce the error. Can you provide more context such as:

Where did you add the new field (in Map Viewer, the Data tab, Pro...?)
What is the field type?
Where did you look but not find the new field (the table in Map Viewer, the Data tab, the Fields pane, the Pop-up...) and
Where do you see the error message?

Re: Cannot Add Duplicate Field Error in Feature Layer

MeleKoneya — Fri, 03 Jan 2025 20:58:31 GMT

@EmilyGeo

I did open a support ticket but to answer your questions

I added the field via the Data Tab
It is a string
I don't see the new field in Data Tab, Fields Pane, and ArcGIS Pro
I got the error message, when I tried to add the field again, because it never show up in the above bullet.

I've never had this one before.

Mele

Re: Cannot Add Duplicate Field Error in Feature Layer

EmilyGeo — Fri, 03 Jan 2025 21:23:19 GMT

Hi @MeleKoneya,

Thank you for clarifying your workflow. Our technical support team will be best equipped to assist you further with troubleshooting this issue.

Best, Emily