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Bubble API Connector 'There Was an Issue Setting Up Your Call'

Workaround available Web, Mobile Updated October 21, 2026

Quick answer

This API Connector error wraps the real HTTP error from the API. Read the status code and message below it, fix headers and JSON quoting, compare against Postman, and retry later if Bubble itself has a known issue.

Most likely fix: Read the raw error.

Symptoms

Clicking 'Initialize call' shows 'There was an issue setting up your call' followed by a status code such as 400 or 500.

Why it happens

  • Missing or wrong required parameter
  • Wrong Content-Type or auth header
  • Malformed JSON body, often doubled quotes from dynamic values
  • API returns an empty or non-JSON response
  • Temporary Bubble-side bug

How to fix it

Try these in order — the most common fix is first.

  1. 1. Read the raw error

    1. Expand the error text under the message
    2. Note the status code and the API's message, such as 'Parameter not specified'

  2. 2. Check headers

    1. Add or correct the Content-Type header (usually application/json)
    2. Confirm the Authorization header or key is in the right place

  3. 3. Fix JSON quoting

    1. Check the body for extra double quotes around dynamic values
    2. Use :format as text with JSON-safe formatting for text that contains quotes

  4. 4. Compare with Postman

    1. Send the same request in Postman
    2. Match every header, parameter and body field exactly in Bubble

  5. 5. Retry and report

    1. Check status.bubble.io and the forum for an ongoing issue
    2. If the call works elsewhere but not in Bubble, file a bug report

This guide also covers

  • bubble api connector error
  • there was an issue setting up your call bubble
  • bubble api connector not working
  • bubble initialize call error

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