@Quiddity I think the issue is that the target page exists, regardless of if it is in the page translation system - I've deleted it, can you try again?

Ah, thank you! That fixed the original problem.

Now I'm getting the standard disallowed-warning for: This translatable page consists of over 500 pages. Moving this many pages has been found to be unreliable. Please contact the administrator to do this via a maintenance script. -- Is that something you can help with, too? :D

(Just in case you can: The desired edit-summary for the page-move is: OTRS -> VRTS renaming process; see [[Phab:T280392]] and [[Phab:T280396]]
If not, do you happen to know if I just need to file a task here for that?)
Thanks, either way!)

I can't move it either, I guess by "administrator" they mean "system administrator" - I'll send a patch to clarify that message, but my understanding is yes, you need to file a phab request for the move and tag Wikimedia-maintenance-script-run

In T284116#7127994, @DannyS712 wrote:

@Quiddity I think the issue is that the target page exists, regardless of if it is in the page translation system - I've deleted it, can you try again?

Hi, usually there is the option to overwrite the target page (at least with no-translatable pages). Why @Quiddity is not seeing it?

Change 710300 had a related patch set uploaded (by Abijeet Patro; author: Abijeet Patro):

[mediawiki/extensions/Translate@master] TranslatablePageMover: Remove custom target page exists check

https://gerrit.wikimedia.org/r/710300

Change 710300 merged by jenkins-bot:

[mediawiki/extensions/Translate@master] TranslatablePageMover: Remove custom target page exists check

https://gerrit.wikimedia.org/r/710300