I keep getting this error message, any Idea why?

[GregB1234]

[franksteiner79 · Accepted solution]

This means your contact doesn't have the necessary subscription type
required to send a sales email.

As the error message states you can either change/add the sales email
subscription type or give a one time reason for having to email the contact.

This article:
https://knowledge.hubspot.com/contacts/how-do-subscription-preferences-and-types-work
explains the HubSpot subscription types and how to set them up.

This article outlines the various ways in which you can manage a contacts
subscription types:
https://knowledge.hubspot.com/contacts/manage-your-subscription-preferences-and-types

I hope that helps.

Frank