e968d00a_oubleClick_for_Publishers_Help__Name
[Macro] %e The various expand macros will show the IDs of entities connected with the line item and creative being served and the ad unit to which it's being served. The inventory hierarchy in DoubleClick for Publishers is different from the hierarchy in legacy DART for Publishers, so the way the expand macros identify inventory is also different. The %e expand macros are fully supported in DoubleClick for Publishers, as described below. [Name] 
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DFP macros - DoubleClick for Publishers Help