Article summary
A practical workflow for normalizing Mauritania +222 numbers, separating WhatsApp registration from activity, and reviewing exported activity fields without overstating what they prove.
A Mauritania WhatsApp list can look consistent while containing several representations of the same number: an eight-digit national number, a full +222 number, a dialling string beginning with 00222, or a spreadsheet value that lost its plus sign. Those differences matter before any WA or WS number screening takes place. If they remain unresolved, duplicates and malformed rows can distort both registration and activity results.
The numbering information published through the International Telecommunication Union describes Mauritania as using a closed eight-digit national plan. For cross-border data, the practical storage form is +222 followed by the eight national digits. Formatting establishes where a number belongs; it does not establish whether the owner has a WhatsApp account, has used it recently, or has agreed to receive a message.
Three separate questions hide inside one +222 list
Country-code validation, account registration and recent activity answer different business questions. Treating them as one “valid” flag removes distinctions that are needed for a defensible workflow.
| Question | Evidence to use | What it does not prove |
|---|---|---|
| Does the record fit Mauritania’s plan? | +222 plus eight national digits | That WhatsApp is registered |
| Is there a WhatsApp account? | WS registration screening | That the account is recently active |
| Should the record receive priority? | Activity time and activity days, combined with CRM context | Permission to contact the person |
Why the eight-digit national plan is the right starting point
ITU material on Mauritania’s numbering change states that the national significant number has eight digits. A cross-border record should therefore be tested against the pattern +222 followed by eight digits after presentation characters have been removed. A value such as +222 12 34 56 78 may illustrate the shape, but should not be treated as a real subscriber number or as evidence of a particular operator allocation.
An unprefixed eight-digit value deserves extra caution. A multi-country form, purchased dataset or merged CRM can contain eight-digit numbers from several plans. Add +222 only when the record’s country field, acquisition source or user-supplied information supports that attribution. Keep the original input in a separate column so an incorrect assumption can be reversed.
Convert mixed dialling strings into screening-ready text
- Import the phone column as text so spreadsheet software does not interpret the plus sign.
- Preserve a copy of the received value before removing spaces, hyphens and parentheses.
- Convert 00222 to +222 only for records already identified as Mauritanian.
- Verify that exactly eight digits remain after the country code.
- Deduplicate on the normalized international value while retaining source and update date.
- Place one normalized number on each line of a UTF-8 TXT file.
This order separates a deterministic formatting exercise from an external platform-status check. It also prevents one customer from consuming several task rows merely because the source systems used different display conventions.
A registered account is not the same as an active account
WhatsApp’s official registration instructions say that a person activates an account with a phone number capable of receiving a verification code and enters that number in full international format. That establishes the registration mechanism, not current usage. A number can remain associated with an account while being a poor candidate for a time-sensitive service workflow.
For an older lead or customer list, registration screening can be used as the first filter and activity screening can then be applied to the registered subset. If the source already guarantees that every record is a WhatsApp user, the activity task may be selected directly. In either case, keep the two result files separate so “not registered” is never confused with “registered but not recently active.”
Turn activity fields into a list that humans can review
AppShai’s WS activity screening export contains the phone number, activity time, activity days and the WhatsApp mapped phone number. Those fields support ranking, but the business should choose the time windows. A support team handling a current incident may need a short recency band, while a renewal team may work with a longer customer cycle.
- Recent segment: verify identity, relationship and contact purpose before moving the record into an operational queue.
- Review segment: compare activity with the last order, form submission or service case.
- Low-priority segment: retain for hygiene analysis or source verification instead of assuming that the person is unreachable.
The mapped phone field should remain beside the submitted number rather than replacing it automatically. A difference may require review of migration, formatting or source-system history.
Reconcile French, Arabic and English source systems
Mauritanian records may arrive through forms and CRMs using different languages and field labels. The spelling of the country, use of Western or Arabic numerals, and placement of the international prefix can vary even when the underlying number is the same. Normalize the number first, then resolve conflicting metadata according to source reliability and recency.
Consent and suppression data require stricter treatment than ordinary profile fields. If one source says a customer may be contacted and a newer source records an opt-out, the opt-out must survive the merge. Activity is a prioritization signal, not a way to override that decision.
Run WS activity screening without changing the input contract
Upload a TXT file containing one number per line to the AppShai WhatsApp Number Checker and select WS activity screening. The service accepts TXT input and returns an Excel workbook with fields for the chosen task. Excel and CSV are outputs or working formats, not supported upload formats. Select WS registration screening instead when the only question is whether an account is registered.
After download, confirm the task name and row count before joining the workbook to the CRM. Use the submitted phone number as the controlled join key, preserve the task date, and review exceptions separately. That prevents a later spreadsheet merge from silently turning an activity result into a registration claim.
Pause on anomalies instead of inventing missing digits
A value with the wrong length after +222 may be truncated, concatenated or assigned to the wrong country. It should be quarantined rather than padded. Conflicting results for the same number often come from different task types or run dates. A batch-wide failure more often points to file encoding, hidden characters or line breaks than to every subscriber becoming invalid at once.
Number allocations can change, so teams handling fresh acquisitions should consult the ITU national numbering-plan directory. The official WhatsApp registration instructions are the appropriate source for registration requirements. Together, those sources define the formatting and account boundaries; the business relationship and lawful contact basis still come from the organization’s own records.
