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Saveback goes into the share/etf that is saved with at least €50.

The roundup can be invested in a share/etf of your choice
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@Der_Dividenden_Monteur not necessarily, you can select the savings plan, make the saveback on the savings plan and then change the savings plan again and it stays with the saveback. At least I save 2 different ETfs. Savings plan is world and saveback is bonds.
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@topicswithhead can be done differently, but that's how I did it. Seems to work normally now. Just tried it again.
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