Article summary
Prepare Falkland Islands +500 five-digit subscriber numbers for a WS/WA registration check, with exception handling, minimum cohorts and deletion controls for a very small numbering market.
The easily missed issue in a Falkland Islands WhatsApp registration check is not the +500 country code. It is that a very short, small numbering space magnifies both errors and privacy exposure. The task answers only whether a normalized phone was observed as registered on WhatsApp at check time. It does not prove the holder, island residence, present reachability or permission to market.
Understand the scale of +500 first
The ITU-published Falkland Islands national numbering plan identifies country code +500 and five-digit subscriber numbers in the international number. A value is not Falkland evidence merely because it has five digits. Keep country_evidence such as a form country selection, contracted market or explicit dataset description.
Separate dialling notation from the subscriber number
| Raw form | Admission rule | Outcome |
|---|---|---|
| +500 XXXXX | Remove separators and validate five subscriber digits | Candidate passes |
| 00500 XXXXX | Recognize international-access notation | Convert while retaining raw |
| Five digits only | Require Falkland provenance | Otherwise review |
| Unexpected length | Never pad or truncate | format_exception |
Do not let a spreadsheet reinterpret a short phone
When Excel treats a phone as a number, it can alter leading characters or display it unexpectedly. Preserve phone_raw as text, create a separate phone_e164_candidate and record normalization_rule_version. Before producing TXT, confirm that every line contains only a phone—no heading, comma, note or blank row.
A registration check should stay narrow
AIPUSH WS Registration exports phone and registration status. It is not an activity, avatar, or Gender and Age task and does not return conversations. A narrow question makes the denominator auditable: unique inputs, returned observations, exceptions and unknowns are counted separately.
Why a small market needs special acceptance
| Risk | Small-market effect | Control |
|---|---|---|
| Duplicate | A few repeats can materially inflate the rate | Deduplicate after normalization |
| Re-identification | A detailed combination may identify a person | Enforce minimum report cells |
| Wrong-country assignment | A local five-digit value may come from another field | Require country evidence |
| Shared phone | A household or business contact is not an individual | Do not auto-merge contacts |
Split upload and CRM rejoin into two paths
The AIPUSH upload is TXT with one phone per line. Name, address, order and permission remain inside the organization. Build a crosswalk using batch_row and contact_id. Let the exported Excel land in staging and rejoin by normalized phone plus batch key, never by presumed row order.
Registered does not mean sendable
“Registered” describes a platform-state observation only. Before messaging, independently check provenance, purpose, applicable regional rules, user permission and opt-out history. A registered phone without permission remains quarantined rather than becoming a bulk-send audience.
Do not report identifiable tiny cells
A report should not cross island location, order type, age band and registration state into cells of one or two people. Even internal operations need a minimum-cell rule and may report only an overall count. External examples use aggregates or synthetic data, not partially masked phones that can be reconstructed.
The batch evidence worth retaining
Record raw rows, unique phones, five-digit rule passes, unknown provenance, duplicates, registered/not registered/unknown, checked time, rule version, permitted purpose and deletion date. If the +500 plan or business purpose changes, old observations can then be retired precisely instead of becoming unexplained permanent labels.
