400 - Duplicate Custom Field

When I attempt to create a new project or opportunity using the api, I attempted to include the custom field payload, it gives me the following error:

400 Duplicate custom fields are not allowed. The following duplicates were detected:

My payload looks like this:

"CUSTOMFIELDS": [
{
"CUSTOM_FIELD_ID": "OPPORTUNITY_FIELD_25",
"FIELD_VALUE": "Yes"
},
]

As soon as I remove the CUSTOMFIELDS block, there are no errors and the project is successfully created.

What does this 400 error message mean?

Comments

1 comment

Date Votes

Engineering
September 20, 2017 23:56

Hi Lu,

This error means that there are multiple custom fields with the same ID of "OPPORTUNITY_FIELD_25". The API checks for duplication and throws that error.

Regards,

Kevin

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