I am trying to add conditional validations for a field that exists is a part of one form but is not for the other.

This is my custom validation of yup.

export const validationSchema = Yup.object({
  id: Yup.string(),
  name: Yup.string().required('required'),
  level: Yup.object().when('$exist', {
    is: (exist) => exist,
    then: Yup.object().typeError('required').required('required'),
    otherwise: Yup.object(),
  }),
});

In the case where the field is not present it is working fine as it should be. But the validation doesn't work when the field actually exists in the Formik form it returns with an error

level must be a object type, but the field value was null. If "null" is intended as an empty value be sure to mark the schema as nullable()"

I want to make my "level" validation work for one case and not for the other