Delete a contact in Dynamics 365 Sales

Hi @Malejka, Hanna

Based on my research, whether related records are deleted when a Contact is deleted depends on the relationship behavior configured between the Contact table and the related tables. Dataverse supports cascading behaviors such as Cascade, Remove Link, Restrict, and No Cascade, which determine what happens to related records when a parent record is deleted.

If your goal is to automatically delete records from a custom table when the related Contact is deleted, you can review the relationship settings:

• Go to Power Apps Maker portal and select your environment.
• Open Tables > Contact. Select Relationships (or 1:N Relationships).
• Locate the relationship between the Custom Table and Contact.
• Open the relationship and review the Type of Behavior and Delete settings.

For example, a Parental relationship typically uses cascading behavior for delete operations. However, the exact behavior should be verified in your environment before making changes.

Alternative (Classic UI): Settings > Customizations > Customize the System > Entities > Contact > 1:N Relationships > open the relationship > review Cascade Configuration for the Delete action.

Before deleting contacts in a production environment, I recommend testing with a sample Contact and reviewing the relationship settings for any related custom tables, as different relationships can be configured differently.

However, this information is based on my research. For more detailed guidance specific to Dynamics 365 Sales, I recommend posting in the Dynamics 365 Community, as Dynamics 365 products are outside the scope of this Q&A forum. The Dynamics 365 Community is monitored by Dynamics specialists and product experts who can provide more product-specific assistance.

I hope this information helps. Thank you for your understanding.

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