Merge pull request #5540 from segmentio/journeys-clarification

Add entry condition clarification [DOC-741]

Author: rchinn1

src/engage/journeys/build-journey.md

@@ -24,6 +24,9 @@ For more information, see [Setting up your Sources](/docs/engage/quickstart/#ste
 4. Segment displays the entry condition on the Journey Builder canvas. It may take up to two minutes for Segment to estimate the number of users in the journey.
 5. Click **+** to add the next step and view available step types.
 
+> info ""
+> Segment recommends that your entry condition's time window be shorter than or equal to any [exit settings](#journey-exits-and-re-entry) you have. This prevents users from repeating your journey an excessive amount of times. 
+
 ### Using historical data for the entry step
 
 If you select the **Use historical data** option, Segment queries all historical data to generate a list of users who enter the Journey upon publication. If you don't select **Use historical data**, only users who satisfy the entry condition *after* you publish enter the Journey.