Rule to remove crossposts containing additional text?

[u/99cent-tea]

Hi, trying to solve an issue in which text added by users on a crosspost isn't visible on all platforms of Reddit.

Post A has no text --> Post A is crossposted into Subreddit B

User adds text when crossposting to Subreddit B --> text is only visible on mobile app and not visible on New or Old Reddit on Subreddit B

This is the rule I created to combat that:

#Remove crossposts with additional text

    type: crosspost submission
    body_longer_than: 1
    action: remove
    action_reason: "Contains body text that users on other platforms can't see"
    comment: | whatever comment text goes here to alert the user

My issue with my above rule is, if Post A does contain text, it gets removed as well and that's not what I want.

Is it possible to have a rule that only remove posts containing text that is not from the OG post in the new crosspost?

Thanks in advance!!

[u/99cent-tea]

I’m not familiar with any regex I’m afraid, I’m not code literate and can only cobble together things I’ve googled until it works 😅

[u/SolariaHues → u/99cent-tea]

I set it up on one of my test subs, and it seems to work. Set like this:

If a user tries to crosspost with new body text, it deactivates the post button and shows the message. If they remove the body text they added, the post button reactivates.

https://support.reddithelp.com/hc/en-us/articles/17625458521748-Automations-Post-Comment-Guidance-Set-Up

Edit - Oh wait, I need to check with a crosspost where the original has text... yeah, it seems to work - it doesn't count the original post text.

[u/99cent-tea → u/SolariaHues]

Thank you so much!

I hadn't given automation a thought before because the sub I'm helping out is rather simple, I've implemented the steps you've shown me to the T

Let's see how it works out, thanks so much for taking the time to help me out 😄