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ID is a system field, you can’t change it. You can try to save the list as a template and create a new list based on the template.
What is a list ID?
March 2001 List-Id: A Structured Field and Namespace for the Identification of Mailing Lists Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements.
How do I find page ID in SharePoint?
To Get Site Collection ID, hit this URL in browser: https://.sharepoint.com/sites//_api/site/id. To get the subsite ID (or web ID) use: https://.sharepoint.com//_api/web/id. This gets you the ID of the site.
DocumentId is populated by “Document ID Service” feature in SharePoint that can be turned on and off at the site collection level which means that the field may or may not be populated. When active, it provides a way to locate the document regardless of its current name or location.
Open the list that you want to save as a template. Select Settings, and then select List Settings. In the Permissions and Management column, select Save list as template. The Save as Template page appears.
How to display the ID of new list items?
Therefore on the “New Item Form” you can’t display the item ID beforehand (if you were to try and show the “ID” property of the item it would just appear as blank). But like Christophe Reucq mentioned you can display the item ID after the first save (which creates the item).
Essentially each entry in a SharePoint List or a Document Library gets a number (ID). The first entry gets 1, and then it is sequential from there (incremented by 1). Benefits of the ID column The ID number is unique.
The idea is pretty simple. Essentially each entry in a SharePoint List or a Document Library gets a number (ID). The first entry gets 1, and then it is sequential from there (incremented by 1). The ID number is unique. If you delete a list item or a document, it is never used again.