Could not determine remote post type endpoint. Error with custom post type

[sflwa]

Describe your question

I'm trying to push content between 2 sites - I have the plugin installed on both sites and both sites configured as external to each other.

I trying to push from the the primary site and get Could not determine remote post type endpoint.

I'm not sure where to start trying to debug this.

I should note this is a custom post type with ACF

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[jeffpaul]

@sflwa did you utilize the wizard flow when creating those external connections? Have you checked these notes on cpt support?

[sflwa]

@jeffpaul - 1) Yes I did use the wizard and posts work fine
2) I saw the not about the show_in_rest - The custom post type is from a plugin - Is there a snippet I can add to declare that without affecting the plugin - I can check with the plugin author as well

====EDIT====
I was able to add
'show_in_rest' => true,
to the custom plugin in and it did at least copy, however the ACF fields within the plugin - specifically some image fields

I see I need to use dt_push_post hook - can you provide a sample snippet and I should be able to reproduce it