Hi,

In Odoo CRM, the error you’re seeing when trying to delete a stage (crm.stage) comes from a foreign key constraint (crm_lead_stage_id_fkey), meaning at least one record still references that stage. This can happen even if no active leads use it, since archived leads, sales teams (pipelines), or default configurations may still link to it. To resolve, you should first search for all leads including archived ones, check sales teams to see if the stage is still assigned, and confirm it isn’t set as a default. The safest practice is to archive the stage instead of deleting it, especially in production, to preserve database integrity and historical data. Deletion should only be done if you’re absolutely sure nothing references it.

Hope it helps

Facing the same issue here.

Since the stage_id​ field from crm.stage​ is also linked to the crm.activity.report​ model, it is likely that this connection is preventing you from deleting the stage directly. The foreign key constraint enforces that no crm.activity.report​ records are referencing the stage you are trying to delete.