> ## Documentation Index > Fetch the complete documentation index at: https://docs.pearcheck.com/llms.txt > Use this file to discover all available pages before exploring further. # Warning Codes For every user verification, we run a series of validations. One or more warnings may be generated if the validation fails to pass. ### Document and OCR Warnings | Warning Code | Description | Decision | | :- | :- | :- | | UNRECOGNIZED\_DOCUMENT | Document not recognized. | REVIEW | | UNREADABLE\_DOCUMENT | Document not readable. | REVIEW | | DOCUMENT\_NOT\_FOUND | Document is not found in the uploaded image. | DECLINED | | DOCUMENT\_EXPIRED | Document is expired. | DECLINED | | DOCUMENT\_FRONT\_BACK\_MISMATCH | Document front and back does not belong to same person. | REVIEW | | DOCUMENT\_DAMAGED | The document is damaged. | REVIEW | | DOCUMENT\_FRONT\_MISSING | Document front not detected in the document image. | DECLINED | | DOCUMENT\_BACK\_MISSING | Document back not detected in the document image. | DECLINED | | DOCUMENT\_FRONT\_OR\_BACK\_MISSING | Document front or back is missing or cannot be read. | DECLINED | | DOCUMENT\_CROPPED | Document not fully in frame / cropped. | REVIEW | | DOCUMENT\_FACE\_NOT\_FOUND | Could not detect face in document image. | REVIEW | | DOCUMENT\_TOO\_FAR | The document is too far from the camera. | APPROVED | | DOCUMENT\_TAMPERED | Document patterns hint at tampering or recreation. | REVIEW | | AGE\_UNDER\_18 | User is under 18 years old. | REVIEW | | INVALID\_DOCUMENT\_DETAILS | Document data is invalid or not as per the standards. | REVIEW | | ID\_PREVIOUSLY\_SEEN | The given identity document/number has been previously verified. | APPROVED | | DATABASE\_LOOKUP\_ISSUE | The data could not be verified with a third-party/government database. | REVIEW | | MRZ\_DATA\_MISMATCH | Data from MRZ / Barcode / QR code does not match with the extracted data | APPROVED | ### Document - Missing Fields | Warning Code | Description | Decision | | :- | :- | :- | | MISSING\_EXPIRY\_DATE | Document expiry date is missing or cannot be read. | REVIEW | | MISSING\_ISSUE\_DATE | Document issue date is missing or cannot be read. | REVIEW | | MISSING\_BIRTH\_DATE | Birthday information is missing or cannot be read. | APPROVED | | MISSING\_DOCUMENT\_NUMBER | Document number is missing or cannot be read. | REVIEW | | MISSING\_PERSONAL\_NUMBER | Personal number or national ID number is missing or cannot be read. | APPROVED | | MISSING\_ADDRESS | Address is missing or cannot be read. | APPROVED | | MISSING\_POSTCODE | Postcode is missing or cannot be read. | APPROVED | | MISSING\_NAME | Given name or family name is missing or cannot be read. | REVIEW | | MISSING\_GENDER | Gender is missing or cannot be read | APPROVED | | MISSING\_NATIONALITY | Nationality is missing or cannot be read. | APPROVED | | MISSING\_DOCUMENT\_DETAILS | Document data is missing or cannot be read. | APPROVED | ### Document - Mismatch between supplied fields and extracted/lookup data. | Warning Code | Description | Decision | | :- | :- | :- | | NAME\_VERIFICATION\_FAILED | Mismatch between supplied user name and extracted/looked up name. | APPROVED | | BIRTH\_DATE\_MISMATCH | Mismatch between supplied birthday and extracted/looked up birthday. | APPROVED | | ID\_DATA\_MISMATCH | Mismatch between supplied user data and data from third-party/government database. | APPROVED | | ID\_TYPE\_MISMATCH | The ID type does not match with the input identity type. | APPROVED | | ID\_COUNTRY\_MISMATCH | The ID issue country does not match with the input country. | DECLINED | | ADDRESS\_MISMATCH | Mismatch between supplied address and extracted/looked up address. | APPROVED | | ID\_NOT\_ALLOWED | Identity type is not enabled in the template. | APPROVED | | EMAIL\_ADDRESS\_MISMATCH | Mismatch between supplied email address and extracted/looked up email address. | APPROVED | | PHONE\_NUMBER\_MISMATCH | Mismatch between supplied phone number and extracted/looked up phone number. | APPROVED | ### Document Anti-forgery Warnings. | Warning Code | Description | Decision | | :- | :- | :- | | DOCUMENT\_PHOTO\_OF\_PHOTO | Document appears to be a photo of a photo. | REVIEW | | SCREEN\_DETECTED | The document image contains a screen, monitor or mobile device therefore is possibly a photo of a photo | REVIEW | | IMAGE\_FORGED\_EDITED | The document image possibly contains forged elements which warrants a manual review or rejection. | REVIEW | | FEATURE\_VERIFICATION\_FAILED | Document features does not match with official document, the document could be fake, blurry or low resolution. | REVIEW | | FAKE\_ID | The document uploaded is a fake or sample document, not an authentic document. | REVIEW | | DOCUMENT\_FOUND\_ON\_INTERNET | The document image is found on the internet. | REVIEW | | ARTIFICIAL\_IMAGE | Document appears to be created artificially, not a naturally taken photo. | REVIEW | | ARTIFICIAL\_TEXT | Most texts within the image appears to be created artificially. | REVIEW | | TEXT\_FORGERY | Possible artificial text modification detected. | REVIEW | | IMAGE\_TOO\_SMALL | The image resolution did not meet the standards. | REVIEW | | GLARE\_DETECTED | The document image contains possible glare. | REVIEW | | IMAGE\_TOO\_BLURRY | The document image is blurry. | REVIEW | | CHECK\_DIGIT\_FAILED | The document is not a valid document because it contains invalid check dig | REVIEW | | PRINTOUT\_DETECTED | The document image is a print out / photocopy of the original. | REVIEW | | BLACK\_WHITE\_DOCUMENT | The document appears to be black & white photocopy. | REVIEW | ### Biometric Warnings | Warning Code | Description | Decision | | :- | :- | :- | | FACE\_NOT\_FOUND | Could not detect face in selfie image. | DECLINED | | MULTIPLE\_FACES | Multiple faces detected in selfie image. | DECLINED | | FACE\_MISMATCH | Face mismatch between document/government photo and selfie photo. | DECLINED | | LOW\_FACE\_SIMILARITY | Low face similarity between document/government photo and selfie photo. | REVIEW | | FACE\_IDENTICAL | Selfie photo appears to be the exact same photo as document photo. | REVIEW | | FACE\_NOT\_LIVE | Selfie photo is not live. | DECLINED | | FACE\_PHOTO\_OF\_PHOTO | Selfie photo appears to be a photo of a photo. | DECLINED | | FACE\_COVERED | Selfie photo appears to have hat or mask or glasses. | DECLINED | | FACE\_EDITED | Selfie photo edited using filters. | DECLINED | | FACE\_BLUR | Selfie photo is too blurry and should be retaken for improved accuracy. | DECLINED | | FACE\_TOO\_CLOSE | Selfie photo is too close to the camera. | DECLINED | | FACE\_CROPPED | Selfie photo cropped / not completely visible. | DECLINED | | FACE\_TOO\_SMALL | The relative proportion of face size in the image is too low. | DECLINED | | FACE\_ANGLE\_TOO\_LARGE | Facial out-of-plane rotation angle is extremely large. | DECLINED | | FACE\_LIVENESS\_REVIEW\_REQUIRED | Selfie photo liveness manual review required. | REVIEW | | FACE\_DEEPFAKE | Selfie photo appears to be a deepfake | REVIEW | | SELFIE\_VIDEO\_FRAUD | Selfie video appears to be fraudulent. | DECLINED | | FACE\_AGE\_MISMATCH | Given age doesn't match with age predicated via facial analysis. | APPROVED | | FACE\_LIVENESS\_TOO\_FAR\_FROM\_CAMERA | Face is too far from the camera. | REVIEW | ### ID Number Warnings | Warning Code | Description | Decision | | :- | :- | :- | | ID\_NUMBER\_NOT\_VERIFIED | The given identity number could not be verified against a database. | DECLINED | | INVALID\_ID\_NUMBER\_SUPPLIED | The given identity number is not in correct format. | DECLINED | | LOOKUP\_SOURCE\_DOWN | The government/third-party lookup source is not available. | DECLINED | | LOOKUP\_FACE\_NOT\_FOUND | Could not find face image in government/third-party database. | DECLINED | ### AML/PEP Warnings | Warning Code | Description | Decision | | :- | :- | :- | | AML\_MATCH | Potential match from AML database. | REVIEW | ### Fraud Warnings | Warning Code | Description | Decision | | :- | :- | :- | | GEOLOCATION\_MISMATCH | The ID issue country does not match with the geolocation country of user. | REVIEW | | SUSPICIOUS\_USER\_BEHAVIOUR | Detected suspicious user behaviour. | REVIEW | | IP\_ADDRESS\_SUSPICIOUS | Client request originated from a suspicious IP address. | REVIEW | | TOR\_DETECTED | User is using TOR or on the TOR network. | APPROVED | | VPN\_DETECTED | User is using VPN. | APPROVED | | BOT\_DETECTED | User is using BOTs to complete the request. | APPROVED | | BROWSER\_PREVIOUSLY\_ATTEMPTED | Multiple requests attempted from the same browser. | APPROVED | | IP\_ADDRESS\_PREVIOUSLY\_ATTEMPTED | Multiple attempts detected from the same IP address. | APPROVED | | ID\_PREVIOUSLY\_ATTEMPTED | Multiple attempts detected using the same ID document / number. | APPROVED | | FACE\_PREVIOUSLY\_ONBOARDED | Person (Face Image) has attempted to onboard before. | APPROVED | | PRIVACY\_SETTINGS\_BLOCKED | Can't get geolocation of user, privacy settings blocked the request. | APPROVED | ### Phone & Email Warnings | Warning Code | Description | Decision | | :- | :- | :- | | EMAIL\_NOT\_FOUND | No email address found. | DECLINED | | PHONE\_NUMBER\_NOT\_FOUND | No phone number found. | DECLINED | ### Background check | Warning Code | Description | Decision | | :- | :- | :- | | BACKGROUND\_CHECK\_ALERT | Background search completed and records were found. | REVIEW | ### Generic Error Code | Warning Code | Description | Decision | | :- | :- | :- | | CUSTOM\_ERROR\_CODE | In this case, a custom error message is returned explaining more details about the warning. This is used in case a warning happened which is not one of the above. | REVIEW | | API\_DATA\_REQUIREMENTS\_NOT\_MET | Missing required fields to run the API. | UNKNOWN | This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.