Personal number or brokerage number: which WhatsApp should clients write to?

In most brokerages WhatsApp arrived from the bottom up: one adviser gave a mobile number to a client in a hurry, then to ten, then the whole team did the same. The result works day to day and is invisible to management, until the day a representative leaves with hundreds of conversations, a client disputes what they were told, or a compliance officer asks where the exchanges are kept.

The choice is not merely technical. A personal number involves a private handset, private backups and a blurred line between work and personal life, which raises questions under POPIA and UK GDPR (the firm is the responsible party or controller but does not control the device), under the FAIS General Code and FCA record-keeping rules (evidence of what was said), and for continuity of service. This comparison puts the two set-ups side by side, including the common case in Southern and East Africa where the broker's own number has been the only contact point clients have known for years.

Each adviser's personal number

Pros

• Zero set-up and zero cost: the client already has the number, the adviser already has the app.
• Direct, responsive relationship: the client knows who they are talking to, and the adviser answers wherever they are.
• In many markets that is what clients expect from a local broker; changing the number can feel like being pushed away.

Cons

• The history belongs to the employee in practice: a departure, a lost or replaced phone, and the conversations are gone for the firm.
• No supervision and no cover: when the adviser is on leave or off sick, their clients wait.
• POPIA, UK GDPR and record-keeping: client data on a private device, backups on a personal account, no log; hard to justify to the Information Regulator, the ICO, the FSCA or the FCA, and impossible to apply retention periods.
• No consent tooling and no opt-out; marketing messages from a personal number are direct marketing with no framework.

Brokerage number (shared app or Business Platform)

Pros

• The number and the history belong to the firm; an adviser leaving changes nothing for the client.
• Teamwork: on the Business Platform with a WhatsApp CRM, conversation assignment, cover during absences, an overview for the key individual or team leader.
• Compliance you can organise: consent records, automatic opt-out, audit log, export for a review, retention periods applied.
• Reminders and campaigns on approved templates, with read statuses.

Cons

• A migration to run: tell every client, get them to save the new number, and handle for months those who still write to the old one.
• Cost and set-up if you go through the Business Platform (Meta verification, software, templates); with the app alone, a shared number is limited to a few devices.
• Apparent loss of closeness: the client must understand they still talk to "their" adviser, which needs a signature and stable assignment.
• In a one-person firm it is the same number anyway; the question only arises once there is a team.

Criterion-by-criterion comparison

Criterion	Each adviser's personal number	Brokerage number (shared app or Business Platform)
Who owns the history	The employee, in practice.	The firm.
Continuity of service	None during absence or after departure.	Cover by assignment; clients see no interruption.
POPIA / GDPR and retention	Data on a private device, personal backups, no log.	Controlled hosting, audit log, export and purge possible.
Evidence of advice given	A screenshot from the adviser, if it still exists.	Time-stamped, exportable history per client.
Indicative cost	Nil.	App: nil; Business Platform: software plus Meta message charges.
Reminders and campaigns	Manual, from each phone, no opt-out.	Approved templates, recorded opt-in, automatic opt-out.
Risk if a phone is lost	Conversations lost and a third party with access to client data.	No conversation lost; the device's access is revoked.
Firm size	Sole adviser.	From the second adviser onwards.
UK / EU vs Africa	The dominant practice across much of Africa; tolerated but fragile in the UK and EU.	Expected in the UK and EU as soon as there is a team; in Africa, a migration to run with care (clients attached to the broker's number).

Our verdict

If you are a sole adviser the question does not arise: your number is the brokerage's number. Simply separate uses with a dedicated business line, back it up regularly, and log consents. A sole proprietor FSP in Gauteng or an independent broker in Nairobi can work that way for years without putting anyone at risk.

As soon as there is a second adviser, the brokerage number wins, for a reason that has nothing to do with technology: the book and the conversations that keep it alive must belong to the firm, not to individuals. Regulators in several countries have fined financial firms for business communications held on personal, unrecorded messaging apps; a brokerage is not an investment bank, but the logic of evidencing advice is the same under FAIS and under SYSC 9. With a WhatsApp CRM like ORIS, the brokerage number becomes a shared inbox where every client keeps their named adviser.

Migrate without brutality: announce the new number by message from the old one, allow a month of dual running, put the new number in email signatures and on policy schedules, then set an away message on the old one. Past conversations stay available to the adviser for reference, but new ones happen on the brokerage number. Our message templates include the change-of-number announcement.

Frequently asked questions

Can the firm require an adviser to stop using their personal WhatsApp with clients?

Yes: the firm, as responsible party or controller, decides the tools of work. The instruction should be written (IT policy, internal memo) and come with a replacement tool. The firm cannot, however, demand access to the employee's private phone, which makes recovering the history uncertain.

Can old conversations be moved to the brokerage number?

WhatsApp lets you export a chat as a text file from the app, with the adviser's agreement. That file can be filed on the client record, but it cannot be imported into a thread on the new number; the relationship starts afresh on the brokerage number.

Will clients accept writing to an "impersonal" number?

If every message from the firm is signed with the adviser's first name and the assignment is stable, most clients do not notice a difference. Present the change as a guarantee of an answer even during absences, rather than as an administrative decision.

What if a representative has already left with their conversations?

Ask them in writing for an export of the business conversations, remind them that client data belongs to the firm, and inform the clients concerned of the new contact point. Log the incident and turn it into the rule for everyone else.