General Troubleshooting Steps for Dependent Dropdown Lists
Here are some general troubleshooting steps you can follow if you’re having issues with dependent dropdown lists:
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Clearly name your fields and lists to avoid confusion, for example Vehicle Make (List) vs. Vehicle Make (Record).
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Walk through field type, source, order, filtering setup, and test with verified data.
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Temporarily disable client scripts or workflows during troubleshooting.
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If stuck, resave all fields and the record type, then refresh your browser.
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Before updating production, try the setup in a sandbox first, especially if there are lots of dependencies.
For more troubleshooting tips, see Troubleshooting Dependent Dropdown List Issues.