Error Codes Reference

Comprehensive reference of all error codes returned by OLIVE APIs.

Error Response Format

All errors follow this structure:

{
  "success": false,
  "error": {
    "code": "ERROR_CODE",
    "message": "Human readable message",
    "details": {
      "field": "Additional context"
    }
  }
}

HTTP Status Codes

Code	Name	Description
400	Bad Request	Invalid request format or parameters
401	Unauthorized	Invalid or missing authentication
402	Payment Required	Insufficient balance or funds
403	Forbidden	Authenticated but not authorized
404	Not Found	Resource does not exist
409	Conflict	Resource already exists
422	Unprocessable Entity	Validation failed
429	Too Many Requests	Rate limit exceeded
500	Internal Server Error	Server-side error
503	Service Unavailable	Temporary outage

Authentication Errors

Code	HTTP	Description	Resolution
`AUTH_MISSING`	401	No auth header provided	Include `Authorization` header
`AUTH_INVALID`	401	Token/key is invalid	Check credentials
`AUTH_EXPIRED`	401	Token has expired	Refresh or re-authenticate
`SIGNATURE_INVALID`	401	HMAC signature failed	Check signing algorithm
`SIGNATURE_EXPIRED`	401	Timestamp too old	Sync clock, retry
`API_KEY_REVOKED`	401	API key has been revoked	Contact admin for new key
`INSUFFICIENT_SCOPE`	403	Key lacks required scope	Use key with proper scope

Transaction Errors

Code	HTTP	Description	Resolution
`INSUFFICIENT_BALANCE`	402	Not enough funds	Check balance before transaction
`DAILY_LIMIT_EXCEEDED`	400	Daily transaction limit reached	Wait for next day or upgrade KYC
`MONTHLY_LIMIT_EXCEEDED`	400	Monthly limit reached	Wait for next month
`TRANSACTION_LIMIT_EXCEEDED`	400	Single transaction too large	Reduce amount
`DUPLICATE_REQUEST`	409	Request ID already used	Use unique request_id
`TRANSACTION_FAILED`	500	General processing error	Retry with same request_id
`RECIPIENT_NOT_FOUND`	404	Recipient doesn’t exist	Verify recipient ID

Card Errors

Code	HTTP	Description	Resolution
`CARD_NOT_FOUND`	404	Card serial not in system	Verify serial number
`CARD_ALREADY_LINKED`	409	Card linked to another subscriber	Card cannot be reused
`CARD_BLOCKED`	400	Card is blocked	Unblock card first
`CARD_DISABLED`	400	Card permanently disabled	Request new card
`INVALID_PIN`	400	Wrong PIN entered	Check PIN (max 3 attempts)
`PIN_LOCKED`	400	Too many wrong PIN attempts	Contact support to unlock

Subscriber Errors

Code	HTTP	Description	Resolution
`SUBSCRIBER_NOT_FOUND`	404	Subscriber doesn’t exist	Check ID/phone number
`PHONE_ALREADY_REGISTERED`	409	Phone number in use	Use different phone
`KYC_REQUIRED`	400	Higher KYC level needed	Upgrade KYC level
`ACCOUNT_SUSPENDED`	403	Account is suspended	Contact support
`ACCOUNT_BLOCKED`	403	Account is blocked	Contact compliance
`INVALID_PHONE_FORMAT`	400	Phone number format wrong	Use +232XXXXXXXX format

Agent Errors

Code	HTTP	Description	Resolution
`AGENT_NOT_FOUND`	404	Agent doesn’t exist	Verify agent ID
`INSUFFICIENT_FLOAT`	402	Agent lacks float	Request float from master
`AGENT_SUSPENDED`	403	Agent is suspended	Contact admin
`FLOAT_TRANSFER_DENIED`	403	Cannot transfer to this agent	Check agent relationship

POS/Processor Errors

Code	HTTP	Description	Resolution
`PROCESSOR_NOT_FOUND`	404	Processor doesn’t exist	Verify processor ID
`PROCESSOR_SUSPENDED`	403	Processor is suspended	Contact admin
`INVALID_HMAC`	401	HMAC signature invalid	Check secret and algorithm
`TERMINAL_NOT_REGISTERED`	401	Unknown terminal	Register terminal first

PEP Access Errors

Code	HTTP	Description	Resolution
`PEP_ACCESS_DENIED`	403	Not authorized for PEP access	Request PEP authorization
`INVALID_OTP`	400	Wrong or expired OTP	Request new OTP
`OTP_EXPIRED`	400	OTP has expired	Request new OTP
`TOO_MANY_OTP_ATTEMPTS`	429	Too many failed OTP attempts	Wait before retrying

Compliance Errors

Code	HTTP	Description	Resolution
`COMPLIANCE_HOLD`	403	Transaction flagged for review	Wait for compliance clearance
`BLOCKED_RECIPIENT`	403	Recipient is on blocklist	Cannot transact with this party
`HIGH_RISK_TRANSACTION`	400	Transaction blocked by rules	Contact compliance

Validation Errors

Code	HTTP	Description	Resolution
`VALIDATION_FAILED`	422	Input validation failed	Check error details
`REQUIRED_FIELD_MISSING`	400	Required field not provided	Include all required fields
`INVALID_AMOUNT`	400	Amount format invalid	Use positive integer (cents)
`INVALID_CURRENCY`	400	Unknown currency code	Use `SLE` or `USD`

Rate Limit Errors

Code	HTTP	Description	Resolution
`RATE_LIMITED`	429	Too many requests	Wait and retry

Rate Limit Headers

X-RateLimit-Limit: 100
X-RateLimit-Remaining: 0
X-RateLimit-Reset: 1704067200
Retry-After: 60

Error Handling Best Practices

Idempotency

Always include request_id for safe retries on failures

Exponential Backoff

Use exponential backoff for rate limit and server errors

Error Logging

Log full error responses for debugging

Graceful Degradation

Handle errors gracefully in your application

Retry Strategy

async function withRetry(fn, maxRetries = 3) {
  for (let i = 0; i < maxRetries; i++) {
    try {
      return await fn();
    } catch (error) {
      if (error.status === 429 || error.status >= 500) {
        const delay = Math.pow(2, i) * 1000; // 1s, 2s, 4s
        await new Promise(r => setTimeout(r, delay));
        continue;
      }
      throw error; // Don't retry 4xx errors
    }
  }
  throw new Error('Max retries exceeded');
}

Troubleshooting

Common issues and solutions

API Reference

Full API documentation

​Error Codes Reference

​Error Response Format

​HTTP Status Codes

​Authentication Errors

​Transaction Errors

​Card Errors

​Subscriber Errors

​Agent Errors

​POS/Processor Errors

​PEP Access Errors

​Compliance Errors

​Validation Errors

​Rate Limit Errors

​Rate Limit Headers

​Error Handling Best Practices