Business Owner Posts (Google Maps)

Use this endpoint when you need to programmatically access the 'From the owner' section of a Google Maps listing — business announcements, promotions, events, or updates posted directly by the owner. Prefer this over review or photo endpoints when the goal is to track official business communications. It is the only endpoint in this suite specifically targeting owner-authored posts with chronological ordering and pagination support.

• Invalid or non-existent business_id returns empty posts array or error status
• Business has no owner posts — returns empty posts array with null cursor
• Invalid cursor value causes pagination failure or repeated first page
• Unsupported region or language code may fall back to defaults silently
• Rate limiting or quota exhaustion returns 402 or error status
• Google Maps listing may not expose owner posts for all business types