Zoho Bigin · api · fg-0109

Bigin creates a new contact on every API create, even for a duplicate email

Two or more contacts share one email

Verified 2026-07-18 · Confirmed by 0 builders · Trust 50/100

Cause

The create endpoint does not deduplicate contacts by email.

Fix

Search by email before creating, and update the existing contact when one is found.

Apply

GET /bigin/v2/Contacts/search?email=<email>; create only when the response is 204

Affects: Bigin API v2 and Make createAcontact, July 2026

Have your agent know this before it fails

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