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implementing lookup

I want to implement a lookup which can contain values like(TEST01, TESO02, TEST03)
is it poosible to implement a lookup without creating a new object
Best Answer chosen by Simrin
Cyrus TalladenCyrus Talladen
a lookup must reference an object's Id, if not then you will get a null reference error.  If you want to implement logic without using lookups where objects are visible then you have to use Apex, as an anonymous block of code on the developer console

Cyrus T
Salesforce engineer