### Why do I not see the expression/segmentation/aggregate I created in the list of events/attributes?
This might be due to the definitions or analyses being in different [initiatives](🔗). When a piece of your use case is placed in an initiative, all other pieces _either_ need to be in the same initiative, _or_ need to be marked as `
### How to build a report for multiple campaigns that calculates revenue or other properties using a running aggregate in rows?
If a [running aggregate](🔗) is used in the rows and the [report](🔗) is made for multiple campaigns, discrepancies between the original evaluation for a single campaign and custom report for multiple campaigns are expected due to variability of customer journey and inability to achieve 100% correct attribution.