# Automation Flow - How to avoid duplicates
In the Automation Flow it is possible to create an automation that prevents the duplicate creation of opportunities.
* You can also prevent duplicate opportunities directly through the CRM, [check the step-by-step here.](https://docs.sprinthub.com/topicos/geral/crm/crm-automacoes/crm-automacao-para-evitar-oportunidades-duplicadas)
In the following example we used segments, but you can also use tags, if applicable.
* [To learn how to create segments click here.](https://docs.sprinthub.com/topicos/relacionar/segmentos)
* [To learn how to create tags click here.](https://docs.sprinthub.com/topicos/configuracoes/tags)
1 - Go to Automation Flow, click +New and add a Name.
2 - Select “Allow leads to restart the flow” YES, and “Published” at the end of the configuration.\
Indicate the main segment.
3 - Click “Open Builder”.
Add the **Condition**: “Does the lead have an opportunity?” >> The Lead does NOT have an opportunity.\
On the **positive output** of this first block, we will add **one more Action**: “Create opportunity >> Configure the opportunity as shown below:
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In **negative output**, then add the action “Notify an employee” >> Select an employee to be notified, in the case of leads that ALREADY HAVE opportunities.\
Save the automation.
