Unable to See "ExternalReservation" in Data Cloud Related List – Step 6 Issue in "Bring External Data into the Contact Page Layout" Challenge

Hi Trailblazers,

I'm currently working on the "Bring External Data into the Contact Page Layout" challenge, which is part of the "Become an Agentblazer Champion"

 trail 

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I'm stuck at Step 6 in the "Connect Data Cloud and CRM with Enrichment" section. The step instructs to:

However, I am unable to see "ExternalReservation" as an option in the Data Cloud Related List dropdown. I've verified the previous steps, and I believe I've configured the data model and mappings correctly.

Has anyone else encountered this issue? Is there something specific I need to check to make "ExternalReservation" appear in the related list?

Thanks in advance for your help! 

#Trailhead Challenges