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This endpoint was deprecated on May 20, 2026. Use Create Business Customer V2 instead.

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Important Requirements

  • Email Address: Must be all lowercase or you will receive a validation error
  • RELIANCE Verification: If you attempt to use RELIANCE verification type but it’s not enabled for your client, you will receive a 423 error with message: “RELIANCE is not available for your client”
  • Third-party Fund Usage: The third_party_fund_usage field indicates whether this customer will be moving other people’s money
  • Ownership Percentages: The total ownership percentages of all associated parties must add up to more than 0 and less than 100