> For the complete documentation index, see [llms.txt](https://software-help-docs.gitbook.io/knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://software-help-docs.gitbook.io/knowledge-base/software-guide/contacts/how-to-allow-or-prevent-duplicate-contacts.md). # How to Allow or Prevent Duplicate Contacts This tutorial will show you how to allow or prevent duplicate contacts within our software. To learn more about importing contacts, visit the article "How to Import Contacts" for step-by-step guidance. Navigate to Settings > Business Profile> General. Check or un-check the box to allow or prevent duplicate contact records. {% embed url="" %} If allowed, the duplicate contact will only work when our software receives a lead from a form or Zap, when leads can be imported one by one. ***NOTE:*** If "Allow Duplicate Contact" is on, and you try to import a bulk upload, an error will occur. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://software-help-docs.gitbook.io/knowledge-base/software-guide/contacts/how-to-allow-or-prevent-duplicate-contacts.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.