Troubleshooting
Common issues, error scenarios, and solutions.
API Issues
401 Unauthorized
Symptom: All API requests return 401 Unauthorized.
Causes:
- Missing
Authorizationheader - Invalid or expired API token
- Token has been revoked
Solutions:
- Verify the
Authorization: Bearer {token}header is present - Generate a new token from the dashboard
- Check that the token hasn't expired (default: 180 days)
- Ensure you are using the correct workspace URL
404 Not Found
Symptom: API requests return 404 Not Found.
Causes:
- Incorrect resource ID
- Resource belongs to a different workspace
- Wrong API version in the URL
- Wrong flow path name
Solutions:
- Verify the resource ID is correct
- Confirm the resource belongs to your workspace
- Check the API URL format:
/api/v1/{flow}/{resource} - Use the correct flow path:
usps1583oridentity
422 Validation Error
Symptom: API requests return 422 Unprocessable Entity with validation errors.
Causes:
- Missing required fields
- Invalid field values (wrong type, format, or length)
- Invalid document type for the flow
- Forbidden document type + country combination
- Document types are the same for photo ID and proof of address
Solutions:
- Inspect the
errorsobject in the response for specific field messages - Verify document types exist in the flow configuration
- Check for forbidden document type + country combinations
- Ensure photo ID and proof of address document types differ
400 Bad Request (Invalid Flow)
Symptom: Requests return 400 Bad Request with "Invalid verification flow.".
Causes:
- The verification does not belong to the specified flow
- Wrong flow path in the URL
Solutions:
- Check the verification's flow membership
- Use the correct flow path in the URL
400 Bad Request (Business Rules)
Symptom: Requests return 400 Bad Request with business rule error messages.
Common Error Messages:
| Error | Cause | Solution |
|---|---|---|
The verification is canceled. | Attempting to modify a canceled verification | Create a new verification |
The verification has already started. | Attempting to upload documents after submission | The verification is already in the pipeline |
Document type not allowed. | Document type is not configured for this flow | Check the flow's document type configuration |
The verification already has a {type} document. | Duplicate document type upload | Delete the existing document first |
The document is canceled. | Attempting to make a decision on a canceled document | The document is no longer active |
The document could not be created by missing data... | Missing required data | Check request body for completeness |
Authentication Issues
MFA OTP Not Received
Symptom: You log in but do not receive the MFA OTP email.
Causes:
- Email sent to spam/junk folder
- Incorrect email address on the account
- Email server delay
Solutions:
- Check your spam/junk folder
- Wait a few minutes and request a new code
- Contact an administrator to verify your email address
- An administrator can reset your MFA if needed
Account Locked
Symptom: You cannot log in and see a lockout message.
Causes:
- Multiple failed login attempts
- Brute force protection triggered
Solutions:
- Wait for the lockout period to expire
- Contact an administrator to unlock your account manually
Cannot Complete MFA
Symptom: You cannot access the MFA challenge page.
Causes:
- MFA challenge session has expired
- You navigated away from the challenge page
Solutions:
- Log in again to receive a new MFA challenge
- If the problem persists, contact an administrator
Verification Processing Issues
Verification Stuck in "Started"
Symptom: A verification remains in Started status for an extended period.
Causes:
- Documents not uploaded
- Verification not submitted
- Required documents missing
Solutions:
- Upload all required documents (photo ID, proof of address)
- Submit the verification using the submit endpoint
- Check the flow configuration for required document types
Verification Stuck in "Submitted"
Symptom: A verification remains in Submitted status without progressing.
Causes:
- Extraction pipeline is processing
- Queue backlog
- Extraction failure
Solutions:
- Wait a few minutes for processing to complete
- Check the verification documents for extraction errors
- Contact support if the issue persists
Data Extraction Failed
Symptom: Document processing fails or returns empty extracted data.
Causes:
- Low-quality document image
- Unsupported document format
- Extraction provider error
Solutions:
- Upload a higher-quality image (better lighting, higher resolution)
- Ensure the document is a supported type
- Try a different document type
Selfie Match Failed
Symptom: The selfie comparison score is low or the rule fails.
Causes:
- Poor lighting during selfie capture
- Face not clearly visible
- Different person than the photo ID
Solutions:
- Retake the selfie in even lighting
- Ensure the entire face is visible
- Remove sunglasses, masks, or other obstructions
Webhook Issues
Webhook Not Received
Symptom: Your endpoint never receives webhook requests.
Causes:
- Webhook is inactive
- URL is incorrect
- Network connectivity issues
- Event not selected
Solutions:
- Verify the webhook is active in the dashboard
- Check the URL is correct and accessible from the internet
- Verify the events you want are selected
- Check the webhook logs for delivery attempts
Webhook Delivery Failed
Symptom: Webhook logs show failed delivery attempts.
Causes:
- Endpoint returns non-2xx response
- Endpoint timeout
- SSL certificate verification failure
- DNS resolution failure
Solutions:
- Check your endpoint logs for errors
- Ensure your endpoint responds within the timeout period
- Verify your SSL certificate is valid
- Check DNS configuration
- Use the "Resend" option in the webhook logs to retry
Invalid Webhook Signature
Symptom: You cannot verify the webhook signature.
Causes:
- Using the wrong signing secret
- Payload encoding mismatch
- Request body was modified during transmission
Solutions:
- Use the exact signing secret shown when the webhook was created
- Verify you are using the raw request body (not decoded JSON)
- Ensure you are using HMAC-SHA256 with base64 encoding
Document Issues
Document Rejected
Symptom: A document is rejected by the validation pipeline.
Common Rejection Reasons:
| Issue | Solution |
|---|---|
| Name mismatch | Upload a document with the correct name |
| Country mismatch | Check the document's issuing country |
| Document type mismatch | Select the correct document type |
| Document number mismatch | Verify the document number |
| Date of birth mismatch | Upload a document with matching DOB |
| Document expired | Upload a valid (non-expired) document |
| Address is blacklisted | Use a different address |
| Selfie mismatch | Retake the selfie with better lighting |
Cannot Upload Document
Symptom: Document upload fails with an error.
Common Causes:
- Verification is already submitted (status is not Started)
- Verification is canceled
- Duplicate document type (already uploaded)
- Document type not allowed for the flow
- Image too large (over 10 MB)
Solutions:
- Check the verification status — documents can only be uploaded when in Started status
- Verify the document type is configured for the flow
- Delete the existing document of the same type if replacing
- Compress the image to under 10 MB
Rate Limiting
429 Too Many Requests
Symptom: Requests return 429 Too Many Requests.
Causes:
- Exceeded the rate limit for your workspace
Solutions:
- Wait for the
Retry-Afterperiod before making additional requests - Implement exponential backoff in your application
- Reduce the frequency of polling requests
Permission Issues
403 Forbidden
Symptom: Dashboard actions or API requests return 403 Forbidden.
Causes:
- Your role does not have the required permission
- You are trying to access a resource in a different workspace
Solutions:
- Contact an administrator to check your role permissions
- Verify you are in the correct workspace
- Request role elevation if needed for your tasks
Environment Issues
Sandbox vs Production Differences
Symptom: Behavior differs between sandbox and production.
Common Differences:
- MFA is enforced in production but may be disabled in sandbox
- Extraction providers may behave differently with test data
Solutions:
- Use realistic test data in the sandbox for accurate results
- Note that MFA enforcement is a production security requirement
- Contact support if you notice significant behavioral differences
Getting Help
If you encounter an issue not covered here:
- Check the webhook logs and activity logs for detailed error information
- Review the verification history for the affected resource
- Contact our support team with:
- The workspace name
- The resource ID (verification, document, etc.)
- The timestamp of the issue
- Any error messages or response codes