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Variable without a value declared

Question asked by user26728 on Apr 1, 2016
Latest reply on Apr 1, 2016 by user26728

Hello. Newby question..I found this in a calculation field (there is nothing else in the calculation)... $$Current_ITEM_ID ..

There are two fields involved here:

 

Transactions :: ITEM ID MATCH FIELD (calculation field, the calc is  "=$$Current_ITEM_ID")

and

Inventory :: ITEM ID MATCH FIELD (auto-enter, serial number)

 

the relationship is : ITEM ID MATCH FIELD = ITEM ID MATCH FIELD

 

My question, is why enter a variable name, without a value?

Hopefully this makes sense...  Thanks .. G

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