I Accidentally updated a KR with the wrong value and I cannot edit it now. What can I do?
The idea behind KR updates is to be able to follow the KR history. You can find all the info related to the development of the KR by its Updates. Avoiding manipulating of data is important. That's why you cannot edit your Gtmhub KR updates, but you can post an infinite number of consecutive updates.
If the update value, which you set, is wrong - you can do the following:
Post an update with the correct value - this will bring the attainment to the correct level. The graph would still show the spike caused by the incorrect value, but you can add a comment to the update explaining it.
Alternatively you can delete this KR and re-create it - this way you'll have a clean graph