You can overwrite a stand-alone table that has been shared to your ArcGIS Online or ArcGIS Enterprise portal. You may need to do this to reflect changes to the data, to incorporate new data, or to update the table schema. You can also edit a table directly in your portal if you are the item owner or if the table allows editing. For more information, see Edit tables in the ArcGIS Online help.
You can overwrite an existing hosted table if all of the following conditions are true:
- You are signed in to your ArcGIS organization with the account that owns the table being overwritten or as an administrator.
- The location of the table you are overwriting has not changed while the Overwrite Table pane is open.
Overwrite a table
Follow these steps to overwrite a hosted table:
- Open the ArcGIS AllSource project that contains the stand-alone table you will use to overwrite the hosted table. (Alternatively, add the stand-alone table to a project.)
- In the Contents pane, right-click the table or tables, point to Sharing, and click Overwrite Table
. - On the Overwrite Table dialog box, browse to the location of the hosted table in your portal and select it. Click OK.
- Read the Overwrite Table message and click OK to continue.
Caution:
If online edits were made to the hosted table or if data was appended to the hosted table, these changes will be overwritten.
The Overwrite Table pane appears. On the General tab, under Service Details, the name of the hosted table is displayed. This name can't be changed.
- Under the table name, accept the Use the item description from the hosted table default option or choose the Use the item description from the standalone table option.
The default option preserves the item description of the current table. The other option overwrites it.
- Optionally, modify the information in the Summary and Tags fields.
The fields may be empty if you chose to use the item description from the table in the previous step. A summary and tags are required when sharing to an ArcGIS Enterprise 10.9 or earlier portal.
You can enter a maximum of 128 tags.
- Optionally, under Share with, change the setting to one of the following:
- Everyone—Share your content with the public. Anyone can access and see it.
- My Organization—Share your content with all authenticated users in the organization. This option is available when you are signed in with an organizational account.
- Groups—Share your content with groups to which you belong and their members.
Leave all options unchecked to set the sharing level to the owner of the item.
Note:
If you are the owner of the existing hosted table, you can modify the group sharing settings. - Optionally, click the Configuration tab and change settings.
For more information about configuring the table, see Configure a table.
- Optionally, click the Content tab to view the folder, new hosted table, and tables with assigned IDs if available.
If you enabled the Allow assignment of unique numeric IDs for sharing web layers option on the Map Properties dialog box, assigned IDs appear for each table. To change an ID, click the number next to the table. On the Standalone Table Properties dialog box, on the General tab, type a custom integer ID in the Table ID text box. For more information, see Assign layer IDs.
- Under Finish Sharing, click Analyze
to review for potential problems. Errors and warnings are listed on the Messages tab. Right-click a message to open its help topic or take corrective action in the software. Errors
must be resolved before you can share your GIS resource. Resolving warnings 
is recommended but not required. - After you have resolved errors and optionally resolved warnings, click Publish
to share the table. - Optionally, click Jobs
to monitor the job status. - When the table is published, click the Manage the hosted table link at the bottom of the pane.
- If necessary, sign in to your portal to open the item page for the hosted table. Open the table in Map Viewer or click the Data tab on the item page to confirm that the table has been overwritten.