Problem: The client has completed the first run of automatic translation using DeepL and is seeking the most efficient way to correct terms in their glossary that were not translated correctly. Solution: We recommend that if you make changes in the glossary, you should resend the content for translation. If the only segments needing updates are from the glossary and you use DeepL, you will not be charged for applying the translation. There should be a button on the Translation Management's Glossary tab that allows you to update the translation with one click. Please check out this quick guide and its screenshot for more details: https://wpml.org/documentation/translating-your-contents/advanced-translation-editor/how-to-create-and-manage-glossary-entries/#updating-translations
If this solution does not apply to your case, or if it seems outdated, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If you still need assistance, please open a new support ticket at https://wpml.org/forums/forum/english-support/.