topic Web Form Error - An item with the same key has already been added in ArcGIS Survey123 Questions

Web Form Error - An item with the same key has already been added

joshahmann — Wed, 01 Apr 2020 19:55:47 GMT

Hi All,

I have published a survey through Connect and have a web app setup to link to the web form. I have the link setup to edit existing data and add records to a related table. I am able to update an existing record and add a related record but if I try to enter two related records I get the following error:

"Failed to submit - An item with the same key has already been added."

Also, if I open a record in the web form that already has a related record and try to edit either the main record or the related record, I get the same error when I hit submit.

The feature class and the related table are linked using a GUID. I have no problem adding related records using my web app, its only Survey123 that fails.

Any help would be much appreciated.

Re: Web Form Error - An item with the same key has already been added

JamesTedrick — Tue, 21 Apr 2020 22:14:39 GMT

Hi Josh,

Apologies for the delay. For this scenario, it would be helpful if we had a few more details. Is this using an existing feature service or a feature service created by Survey123 Connect. The failure to submit occurs only when there are more than 1 new repeat records, correct?

Re: Web Form Error - An item with the same key has already been added

Anonymous User — Fri, 05 Jun 2020 18:29:55 GMT

Hi James,

I am also getting this error mine is probably just because I'm editing a data within my repeat table. Is it still not supported in Survey123 web app?

Re: Web Form Error - An item with the same key has already been added

MaryEllen_Perko — Thu, 16 Sep 2021 18:37:56 GMT

Hi. Did anyone ever get an answer to this? We're running into the same problem. Thanks.