What happens when a link is deleted?

Description	Example	Results of deleting the item
Has child study objects or has no child study objects. Is used by multiple study objects.	Item name—PregnancyTest Has a codelist or has no codelist. Used on the Visit1 and Visit2 forms.	When you delete the PregnancyTest item from a form (for example, the Visit2 form): The link to the PregnancyTest item is deleted from the Visit2 form. The link to the PregnancyTest item remains on the Visit1form. The PregnancyTest item can be used on other forms.
Has no child study objects. Is used by a single study object.	Item name—PregnancyTest No codelist. Used on the Visit2 form only.	The link to the PregnancyTest item is deleted from the Visit2 form, and the instance of the PregnancyTest item is removed from the study.
Has one or more child study objects. Is used by a single study object.	Item name—PregnancyTest Has a codelist. Used on the Visit2form only.	The link to the PregnancyTest item is removed from the Visit2 form. If the codelist on the item is used by only the PregnancyTest item, then you are asked if the child study objects should be included in the delete: If you select Yes, the instances of the codelist and its codelist items are removed from the study. If you select No, only the PregnancyTest item is removed from the study. The codelist still exists and can be used by other items.

Note:

When you delete the final link of a study object, you receive a message that only a single link to the study object exists in the study or library, and you are asked if you want to delete the study object from the study or library after the link is removed. If you click:

• Yes—Both the link to the study object and the study object itself are deleted from the study or library.
• No—The link to the study object is removed from the study or library, but the study object remains in the study or library.