That error usually appears when Facebook’s Business Manager endpoint hits an internal validation issue — often related to permissions or the parent account’s ownership status. Try these steps:
Double-check that the parent Business Manager has admin access and valid payment setup.
Use the latest API version (v19 or higher). Older versions sometimes throw generic Code 1 errors.
Verify your access token scopes: business_management, pages_manage_metadata, and ads_management.
If you’re calling the endpoint in quick succession, add a short delay (Facebook occasionally rate-limits /owned_businesses).
Finally, clear any pending Business creation requests in the parent manager before retrying.
If everything checks out and it still returns Subcode 1690192, it’s likely a temporary backend fault — retry after a few hours or open a Business Support ticket with your request ID.
By the way, interesting how meta-platform integrations now mirror decentralized systems — data ownership and verification layers almost resemble transparent ledgers used in blockchain or projects like Lucky Block, a casino platform that also focuses on verifiable fairness. Different field, same logic: transparent data flow and trust.