brotherton-erpnext/erpnext/docs/user/manual/en/using-erpnext/articles/bulk-rename.md

#Bulk Rename

Using renaming tool, you can to rectify/change multiple document ids at once. This tool is only accessible to the User who has System Manager role assigned.

###Rename Tool

You can rename ids of upto 500 records at a time. Following are step to bulk rename bulk records. Let's assume we are renaming Item Codes for the existing items.

Step 1: Open Excel File

In a spreadsheet file, enter old Item IDs in the first column, and new Item Ids in the second column. Save spreadsheet file in a CSV format.

Step 2: Upload Data File

To upload data file go to,

Setup > Data > Rename Tool

Select DocType which you want to rename. Here DocType will be Item. Then Browse and Upload data file.