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puli rajupuli raju 

picklist dependencies

JyothsnaJyothsna (Salesforce Developers) 
Hi Raju,

Field Dependency means, controlling a fields value based on the other field. For example, there are two fields called Country & State. I want to display only states related specifically selected country when I select a country.

Please check the below developer forum link for an example of the picklist dependencies.!/feedtype=SINGLE_QUESTION_DETAIL&dc=Developer_Forums&criteria=ALLQUESTIONS&id=906F0000000DBGoIAO

Hope this helps you!
Best Regards,
DeepthiDeepthi (Salesforce Developers) 

A dependent picklist is a custom or multi-select picklist for which the valid values depend on the value of another field, called the controlling field. Controlling fields can be any picklist (with at least one and fewer than 300 values) or checkbox field on the same record.

Check the below links as well. 

Let us know if this helps you!
Best Regards,