Run Command Flags.

Table of Contents



Overview ⇧

This article describes the key sf sfdmu run flags referenced in migration notes for the current engine line.

diagnostic ⇧

Flag: --diagnostic

Enables extended diagnostic logging for a run and writes additional run snapshot details to the log output.

For update/upsert troubleshooting, diagnostic output now includes expanded skip details (same-data skips, no-match skips, and other skip reasons).

In diagnostic mode, this is also written as a dedicated line in the .log file: [diagnostic] update skipped summary: ....

anonymise ⇧

Flag: --anonymise

Enables anonymization for sensitive values in .log files by replacing values with deterministic per-run hash tokens (for example, accessToken<ABCDEF12AB34CD56> and path<11F2AA55CC77EE99>).

Use this flag together with --diagnostic before sharing logs.

For the complete masked/non-masked list, see: /full-documentation/reports/the-execution-log#what-is-masked-and-what-is-not

filelog ⇧

Flag: --filelog

Controls whether a .log file is written (1) or skipped (0).

apiversion ⇧

Flag: --apiversion

Forces a specific Salesforce API version for the current run.

If --apiversion is not provided and apiVersion is not set in export.json, SFDMU auto-detects the default API version:

  • org -> org: lower value of max source API version and max target API version
  • org -> csvfile or csvfile -> org: max API version supported by that org

path ⇧

Flag: --path

Sets the base working directory for the run.

By default, SFDMU expects export.json in this directory. Runtime folders and relative resources are also resolved from this base directory.

file ⇧

Flag: --file

Sets an explicit export.json file to execute.

  • Relative values are resolved against --path.
  • Absolute values are used as-is.
  • Other runtime folders and relative resources still use --path as the base directory.

In diagnostic mode, the .log file includes the resolved export.json path. If this path differs from --path, an additional diagnostic note is written.

failonwarning ⇧

Flag: --failonwarning

Treats any warning as an error. On the first warning, SFDMU stops execution and returns exit code 8 (WARNING_AS_ERROR).

verbose ⇧

Flag: --verbose

Legacy compatibility flag. In the current engine, it does not change runtime behavior.

concise ⇧

Flag: --concise

Legacy compatibility flag. In the current engine, it does not change runtime behavior.

usesf ⇧

Flag: --usesf

Legacy compatibility flag. In the current engine, it does not change runtime behavior.

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Last updated on 21st Feb 2026