Can BOFC Update Master-Detail relationship field ?

Yes, BOFC is capable to update Master-Detail fields of any kind of object.

Experience it for yourself

Bulk Object Field Creator (BOFC) is a must-have tool, designed specifically for Salesforce.com Administrators, that simplifies many of the tedious tasks of managing a complex Salesforce environment.

This tool is available on Appexchange and Click on below button to install the
latest version of BOFC

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