Seeking PokaYoke/keyed solutions with 1731120086

Looking for component that would work with part# 1731120086 / 1731120043 to provide a ‘keyed / poka-yoke’ plug in solution.
So that it would connectors would not be mistakenly swapped due to this keying.
Ideally, would like a ‘cap’ or ‘plug’ in place of the 1731120086 socket component.
Q - what sort of solutions are available (could not find it on the website for this FCT family of products).
Any ideas?

Hello seeking_poka_yoke,
Thank you for your inquiry. I do not see these off hand, but I am checking with our product manager regarding this and will keep you posted once I find out.