To delete a contribution, you must first go to the menu item "Team treasury" and then select the tab "Contributions". Here you have an overview with all already created contributions.
It is important to note that only contributions can be deleted if there has been no action on them yet. An action is executed when you click on one of the gray circles. If you click once, a green tick appears, symbolizing payment. The second click changes the symbol to a gray "one-way sign" symbol, which stands for the liberation of the respective member. A third click makes the original gray circle reappear, signifying that the contribution has not yet been paid by the member.
If you scroll down in the tab "Contributions" you will find the button "Manage contributions". Click on it and you will see an overview with all created contributions. Now select the contribution you want to delete.
A second pop-up will open, which is called "Details". Now you see a trash can icon in the upper left corner. If you click on it, the contribution is deleted.
Note: If you want to delete a contribution, although you have already performed an action here, you can use the archiving function. This will make the contribution disappear from the overview. It is important here that all circles are first brought to the original form (gray circle). Otherwise, the amount will remain in the team treasury. How to archive a contribution, you can read here.