| 1000 | Authentication failed | AuthException — Unable to authenticate app user (WhatsApp: 0) |
| 1001 | Method not allowed | API Method — Capability/permissions issue (WhatsApp: 3) |
| 1002 | Rate limit exceeded | API Too Many Calls — App rate limit reached (WhatsApp: 4) |
| 1003 | Permission missing | Permission Denied — Permission not granted or removed (WhatsApp: 10) |
| 1004 | Invalid value | Parameter value not valid — Business phone number deleted (WhatsApp: 33) |
| 1005 | Invalid parameter | Invalid parameter — Misspelled or unsupported parameter (WhatsApp: 100) |
| 1006 | Token expired | Access token expired (WhatsApp: 190) |
| 1007 | Policy violation | Temporarily blocked for policy violations (WhatsApp: 368) |
| 1008 | Rate limit hit | WABA rate limit reached (WhatsApp: 80007) |
| 1009 | Throughput exceeded | Rate limit hit — Message throughput limit reached (WhatsApp: 130429) |
| 1010 | Experimental number | Number part of experiment (WhatsApp: 130472) |
| 1011 | Region restriction | Business account restricted in this country (WhatsApp: 130497) |
| 1012 | Unknown failure | Something went wrong — Unknown error (WhatsApp: 131000) |
| 1013 | Access denied | Access denied — Permission not granted (WhatsApp: 131005) |
| 1014 | Missing parameter | Required parameter is missing (WhatsApp: 131008) |
| 1015 | Invalid parameter value | Parameter value is not valid (WhatsApp: 131009) |
| 1016 | Service down | Service unavailable — Temporary service downtime (WhatsApp: 131016) |
| 1017 | Sender = Receiver | Recipient cannot be sender (WhatsApp: 131021) |
| 1018 | Message rejected | Message undeliverable (WhatsApp: 131026) |
| 1019 | Account locked | Account locked (WhatsApp: 131031) |
| 1020 | Display name not approved | Display name approval needed (WhatsApp: 131037) |
| 1021 | Bad certificate | Incorrect certificate (WhatsApp: 131045) |
| 1022 | Message window expired | Re-engagement message (outside 24-hour window) (WhatsApp: 131047) |
| 1023 | Spam control triggered | Spam rate limit hit (WhatsApp: 131048) |
| 1024 | Message suppressed | Meta chose not to deliver (WhatsApp: 131049) |
| 1025 | Unsupported message | Unsupported message type (WhatsApp: 131051) |
| 1026 | Download failed | Media download error (WhatsApp: 131052) |
| 1027 | Upload failed | Media upload error (WhatsApp: 131053) |
| 1028 | Sender-recipient throttled | Sender/recipient pair rate limit hit (WhatsApp: 131056) |
| 1029 | Account under maintenance | Account in maintenance mode (WhatsApp: 131057) |
| 1030 | Wrong number of params | Template param count mismatch (WhatsApp: 132000) |
| 1031 | Template missing | Template does not exist (WhatsApp: 132001) |
| 1032 | Text too long | Template hydrated text too long (WhatsApp: 132005) |
| 1033 | Template violation | Template policy violation (WhatsApp: 132007) |
| 1034 | Wrong param format | Template param format mismatch (WhatsApp: 132012) |
| 1035 | Template paused | Template paused (WhatsApp: 132015) |
| 1036 | Template disabled | Template disabled (WhatsApp: 132016) |
| 1037 | Flow blocked | Flow blocked (WhatsApp: 132068) |
| 1038 | Flow throttled | Flow throttled (WhatsApp: 132069) |
| 1039 | Deregistration failed | Incomplete deregistration (WhatsApp: 133000) |
| 1040 | Server unavailable | Server temporarily unavailable (WhatsApp: 133004) |
| 1041 | PIN mismatch | Two-step PIN mismatch (WhatsApp: 133005) |
| 1042 | Reverification required | Phone number re-verification needed (WhatsApp: 133006) |
| 1043 | Too many guesses | Too many two-step PIN guesses (WhatsApp: 133008) |
| 1044 | PIN entry too fast | Two-step PIN guessed too fast (WhatsApp: 133009) |
| 1045 | Number not registered | Phone number not registered (WhatsApp: 133010) |
| 1046 | Retry after delay | Wait before registering phone number (WhatsApp: 133015) |
| 1047 | Too many attempts | Account register/deregister limit exceeded (WhatsApp: 133016) |
| 1048 | Unknown client-side issue | Generic user error (WhatsApp: 135000) |
| 1049 | Too many sync calls | Synchronization request limit exceeded (WhatsApp: 2593107) |
| 1050 | Sync time expired | Synchronization request outside allowed time window (WhatsApp: 2593108) |
