This is a follow up on
https://poeditor.uservoice.com/forums/171919-general/suggestions/3293661-obsolete-terms

Problem is that when you upload manually the terms you can see and check the ones you are not using anymore and can decide to remove terms which are clearly to be deleted and keep others (anyway it would be also helpful to see in which languages it's already available the definition for terms to be deleted).

With API you can't do that: or you loose the unused terms (and definitions!!) with SYNC or you keep all the old sentences.

It would be helpful if there was an option in the REST API "upload" action like "keep_obsolete" which will mark as obsolete the unused terms. Obsolete terms will still be there but will not be exported and will not be proposed to translators.

Admin could then decide to remove them or, if used again they will be just reinstated (with definitions already available!) with the next REST API upload action.

This will be also very failsafe : nothing get lost in case you make an error in the rest api upload