Data Loader Guide

Data Loader
When to Use Data Loader
Install Data Loader
Configure Data Loader
Using Data Loader
Data Types Supported by Data Loader
Export Data from Salesforce
Define Data Loader Field Mappings
Insert, Update, or Delete Data Using Data Loader
Upload Attachments
Upload Files and Links with Data Loader
Review Data Loader Output Files
Data Import Dates
View the Data Loader Log File
Configure the Data Loader Log File
Run in Batch Mode (Windows Only)
Command-Line Quick Start (Windows Only)
Data Loader Third-Party Licenses
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View the Data Loader Log File

If you need to investigate a problem with Data Loader, or if requested by Salesforce Customer Support, you can access log files that track the operations and network connections made by Data Loader.
  • The log file, sdl.log, contains a detailed chronological list of Data Loader log entries. Log entries marked “INFO” are procedural items, such as logging in to and out of Salesforce. Log entries marked “ERROR” are problems such as a submitted record missing a required field. The log file can be opened with commonly available text editor programs, such as Microsoft Notepad.
  • If you are using Data Loader for Windows, view the log file by entering %TEMP%\sdl.log in either the Run dialog or the Windows Explorer address bar.
  • If you are using Data Loader for Mac OSX, view the log file by opening the terminal and entering open $TMPDIR/sdl.log.
  • If you are having login issues from the UI, you need to obtain a new security token.
    If you are having login issues from the command line, ensure that the password provided in the configuration parameters is encrypted.