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Are DELETE /fieldOptions/{id} and PUT /fieldOption/bulk supported API endpoints?

  • February 19, 2026
  • 1 reply
  • 5 views
M

Hey Team,

We’re building an integration that syncs custom field options via the API. We use POST /fieldOption/bulk to create field options, which works well.

However, we also need to update and delete individual field options (e.g., when a product name changes or is removed), and we can’t find documented endpoints for this.

By inspecting browser requests in the ActiveCampaign UI, I found two endpoints that appear to do what we need:

 - DELETE /api/3/fieldOptions/{id} — to delete a single field option
 - PUT /api/3/fieldOption/bulk — to update existing field options (e.g., rename a label/value)

Before relying on these in production, I have a few questions:

1. Are these endpoints officially supported, even if undocumented?
2. Is there any risk of them being removed or changed without notice?
3. Is there a recommended alternative for updating or deleting field options via API?

Any guidance would be appreciated.

Thanks!

 

1 reply

Alanna Hurley
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  • Alanna Hurley
  • Community Manager
  • February 20, 2026

Hi there!

The endpoints you found by inspecting browser requests (DELETE /api/3/fieldOptions/{id} and PUT /api/3/fieldOption/bulk) are not officially documented in the public API, which means:

  1. No official support guarantee - Undocumented endpoints can change or be removed without notice since they're not part of the public API contract
  2. Potential breaking changes - Since they're not publicly supported, there's no commitment to backward compatibility
  3. No SLA coverage - If something breaks, it may not be prioritized the same way documented endpoints are

Before building production integration around undocumented endpoints, I'd strongly suggest to contact ActiveCampaign Developer Support at  developers@activecampaign.com or through https://help.activecampaign.com. You can explain your use case (syncing custom field options, needing update/delete functionality), and ask if these endpoints are stable and safe to use in production.

 

Hope this helps!


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