[Answered ]-Error message after incorrect input in Django admin

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2👍

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You should do this in the proper place, instead of in save

To assign exceptions to a specific field, instantiate the
ValidationError with a dictionary, where the keys are the field names.
We could update the previous example to assign the error to the
pub_date field:

class Article(models.Model):
    ...
    def clean(self):
        # Don't allow draft entries to have a pub_date.
        if self.status == 'draft' and self.pub_date is not None:
            raise ValidationError({'pub_date': 'Draft entries may not have a publication date.'})
        ...
👤Ngenator

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