can the slack connector retrieve DM message history for a user? doesn’t seem like its supported by the connector (https://docs.airbyte.com/integrations/sources/slack#data-type-map) though it seems to be available via slack API

Hi Kevin, if it is not listed in the documentation that means it is not implemented. Please make a feature request on GitHub for this :)

Yeah - I realized its not implemented. Just curious if there was something specific about the slack API that prevented the implementation. otherwise, my company is looking to submit a PR to do just this

I don't have that info, unfortunately! My guess is that whoever was implementing this just did not have the time. Glad to hear that your company is interested in submitting a PR!