Posted on January 15, 2023 (Updated on July 10, 2025)

How do I find the unique id of a layer in ArcGIS Online

Hiking & Activities

Where is the item ID in ArcGIS online?

The item ID is included in the item page’s URL. For example, the web map at https://www.arcgis.com/home/item.html?id=3d355e34cbd3405dbb3f031286f7b39b has an ID of 3d355e34cbd3405dbb3f031286f7b39b .

What is a unique identifier GIS?

Unique ID is a tool that generates custom IDs and GIS features designed to work seamlessly with your GIS database and is built to seamlessly integrate with Cityworks software. Your GIS is now customized to match your workflows and processes.
 

How do I create a unique ID in ArcGIS?

Procedure

  1. In ArcGIS Pro, search for the Data Management tool Create Database Sequence.
  2. In the Create Database Sequence geoprocessing tool, select the desired Enterprise Database in the Input Workspace, provide a name for the Sequence Name, a number for the Sequence Start ID, and the Sequence Increment Value.

 

What is a unique value in ArcGIS?

Unique values symbolize qualitative categories of values. Examples include habitat types, planning zones, voting preferences, and soil classifications. Unique value symbology can be based on one or more attribute fields in the dataset, or you can write an Arcade expression to generate values on which to symbolize.

How do I find item ID?

You can press F3 + H which will enable tooltips. You can now hover over an item or block to see its id.
 

What is an item ID number?

Item identification numbers (item numbers) are used to uniquely identify items that you carry in inventory. Some companies will call them “part numbers”, “model numbers”, “product codes”, SKUs, etc.

What is a unique ID or identifier?

A unique identifier (UID) is an identifier that marks that particular record as unique from every other record. It allows the record to be referenced in the Summon Index without confusion or unintentional overwriting from other records. Examples.
 

What is unique identifier?

A unique identifier (UID) is a numeric or alphanumeric string that is associated with a single entity within a given system. UIDs make it possible to address that entity, so that it can be accessed and interacted with.

How do I find my global unique identifier?

The primary purpose of the GUID is to have a totally unique number.



  1. Open the Registry Editor.
  2. Go to HKEY_LOCAL_MACHINE\SOFTWARE\TrendMicro\PC-cillinNTCorp\CurrentVersion.
  3. On the right side, look for the GUID.


What is object ID in ArcGIS?

An ObjectID is a unique, not null integer field used to uniquely identify rows in tables in a geodatabase. ObjectIDs are limited to 32-bit values, which store a maximum value of 2,147,483,647.

How do I add items to ArcGIS online?

If you have privileges to create content, you can add many types of content as items to ArcGIS Online. You can add many item types by clicking Content > My Content > New item. When you add a layer from a file in Map Viewer, an item is also created for it.

How do I find my ArcGIS license number?

Go to the ArcGIS Administrator located on the Start Menu > All Programs > ArcGIS > ArcGIS Administrator. From there look at the “License Manager Environment Variable Information” section under “ARCGIS_LICENSE_FILE:xxxxxx”. Also look at the “Machine IDs…” tab on the main layout.