REST API Custom Field to Ticket: "That is not a unique value"

RT Users
1

On a new 4.4 RTIR Instance I want to add a CF to a ticket. This worked fine in 3.8, but in 4.4 I always get this error:

Could not add new custom field value: That is not a unique value

I used both the name and the value of the CF directly from another ticket I created via the webinterface.

The Request:
URL: http://rt44.cert.at/rt/REST/1.0/ticket/40/edit
POST with:

{'content': 'CF.{_RTIR_Function}: IncidentCoord'}

The Response: (status code: 200)

RT/4.4.4 409 Syntax Error

# _rtir_function: Could not add new custom field value: That is not a unique value

What does this message mean?

2

does your custom field you are trying to set have the unique values checkbox checked?

3

does your custom field you are trying to set have the unique values checkbox checked?

Yes, it is.

I further found out that this problem occurs only for ticket edits, not for new tickets. For existing tickets, the value is empty string. Maybe the backend tries to add a new field value, but fails because an (emtpy) one already exists?

4

What kinda of custom field type is the custom field?

5

Thanks for your help!

It is “Select one value”

6

I think that means another ticket has the value that you are trying to set your custom field to and you are requiring all values to be unique

7

Thanks! That was the solution.
Altough I haven’t configured it, I did not expect that Unique means that unique in all tickets.

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