Hello Kai, to go a bit deeper, is this other Database in another cluster or is it all within the same cluster?
You could use a delayed node as steevej recommended or you could use a scheduled trigger with $out.
Every 24 hours run a $out to the new collection.
Furthermore, if the other database is in another cluster, you could use Atlas Data Lake along with “$out to Atlas” and again a realm trigger to schedule it.
This tutorial covers that use case, except instead of $out to S3 you would use $out to Atlas.
Lastly, we actually have some new functionality coming at MongoDB world that I think might actually solve your problem better than these others, please reach out at benjamin.flast@mongodb.com if you’d like to discuss it further and I can get you early access.
Best,
Ben