[Qgis-user] Atlas : Output file expression

[Nomeneta Saili]

Hi people,

Wanting to use the ID of each polygon use for the atlas to append to the
output file name.

Tried various expression and does not work from here
https://qgis.org/api/qgis3_user_changes.html

Anyone know of any documentation on these output file expression. Bought a
couple of QGIS textbook but there seems to be no documentation on them.

Any help appreciated
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