In an Issue or Task report, you can add a column with the below text mode:
displayname=Assignment Entry Dates
listdelimiter=<div>
listmethod=nested(assignments).lists
textmode=true
type=iterate
valueexpression=CONCAT(IF(ISBLANK({assignedTo}.{name}),{role}.{name},{assignedTo}.{name})," - ",{entryDate})
valueformat=HTML
Jessica was pretty close in looking at that example she mentioned; all that was needed was to adjust the valueexpression.
I tried to adjust it to show the date of Team assignments, and strangely it doesn't work as expected. I'm able to show the assigned team name using valuefield=team:name, but any valueexpression using {team}.{name} (or even {teamID}) won't display the team as part of the expression.
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