From the ERP Software Blog, fix an already posted entry:
www.erpsoftwareblog.com/2019/05/dynamics-gp-how-do-you-correct-an-entry-that-is-already-posted/
Dynamics GP: How do you correct an entry that is already posted?
Archived post from 2019. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.