Changes to Connect a Slack channel

added the new account enum value to the details/budgetScope response property for the response status 400

added the new account enum value to the details/budgetScope response property for the response status 401

added the new account enum value to the details/budgetScope response property for the response status 422

added the new optional request property channelIds

added the new optional request property redirect_url

the request property channelId became optional

added the non-success response with the status 422

added the optional property code to the response with the 401 status

added the optional property details to the response with the 401 status

added the optional property docUrl to the response with the 400 status

added the optional property docUrl to the response with the 401 status

added the optional property param to the response with the 401 status

added the optional property platform to the response with the 401 status

added the optional property platformError to the response with the 401 status

added the optional property type to the response with the 401 status

removed the platform enum value from the details/budgetScope response property for the response status 400

added the optional property details/adAccountId to the response with the 400 status

added the optional property details/createdObjects to the response with the 400 status

added the optional property details/stage to the response with the 400 status

added the optional property details/unconfirmedWrite to the response with the 400 status

added the new card_verification_required enum value to the reason response property for the response status 402

added the optional property details/verification_amount_cents to the response with the 402 status

added the optional property details/budgetScope to the response with the 400 status

added the optional property details/quotaExhausted to the response with the 400 status

added the optional property details/quotaScope to the response with the 400 status

endpoint added