For a Head or VP of Sales, the biggest WhatsApp problem is visibility.

When every sales rep works from a separate WhatsApp number, a sales manager has very little idea what's happening across those conversations:

• Which leads are being followed up?

• Which prospects have gone unanswered?

• Are sales reps responding quickly enough?

• What are prospects asking about?

• Are conversations moving toward a sale?

• Is one sales rep overloaded while another has very little activity?

Putting every number into one workspace gives the manager a single view of the team's WhatsApp activity.

Periskope's multi-number inbox connects as many WhatsApp and WhatsApp Business App numbers as your team needs, with no set limit. Sales reps keep working from their existing numbers, and managers see the conversations happening across the whole team.

📌 Customer example

An EdTech company managing 20+ WhatsApp numbers uses Periskope to handle 12,000+ student inquiries a year across its sales and mentoring teams. Management now sees every conversation in one place, where before it was scattered across personal phones.

That visibility also makes it easier to monitor and coach the sales team. A sales manager can see where prospects drop off, how sales reps handle common objections, whether follow-ups are happening, and where the team needs better processes.

→ You don't need to read every message. You need to see what's happening across the sales process so you can improve it.

DoubleTick also offers a central inbox. It says you can add 500+ numbers to one account, but each one has to be a WhatsApp Business API number, or a Business App number connected to the API through coexistence. Regular WhatsApp numbers can't be added. DoubleTick adds assignment, routing, analytics and team management on top.

Verdict: Both can centralize multiple sales numbers. Periskope is faster to roll out because sales reps keep their existing WhatsApp numbers, and managers get a full view of conversations, activity and team performance.

2. Following up after the 24-hour window

Prospects reply on their own schedule.

A prospect might ask for pricing on Monday, go quiet for two days, and come back on Thursday. Or a sales rep might need to follow up after the prospect's team reviews a proposal.

On the WhatsApp Business Platform, businesses work within WhatsApp's 24-hour customer service window. Once it closes, a message needs an approved template, and that applies to DoubleTick's coexistence numbers too.

The sales rep holding the phone can still reply from the WhatsApp Business App, but anyone else on the team replying from DoubleTick's inbox needs a template.

DoubleTick has a Frictionless Messaging feature for these follow-ups. Meta also controls how many template messages get delivered.

Periskope connects existing WhatsApp and WhatsApp Business App numbers through Linked Devices, so the number stays on WhatsApp. Your sales rep follows up with a normal message whenever it's needed.

Example:

• Monday → Prospect asks for a quote

• Tuesday → Sales rep sends the proposal

• Wednesday → No response

• Thursday → Sales rep wants to follow up

On DoubleTick, Thursday's message has to follow WhatsApp's rules for messages outside the 24-hour window.

On Periskope, the sales rep sends Thursday's follow-up like any other WhatsApp message. They can also schedule it ahead of time, or let a HubSpot workflow send it when the deal stage changes.

Verdict: DoubleTick works within the API messaging window. Periskope lets sales reps follow up anytime, with no templates, manually or automatically.

3. Selling inside client WhatsApp groups

For many sales teams, WhatsApp selling happens in groups as much as 1:1 chats.

A customer might have a group with the sales rep, the implementation team, an account manager, the founder, or other stakeholders. Questions, approvals and follow-ups all happen there.

So the sales team needs visibility into the groups where customers actually talk.

DoubleTick's groups run on the WhatsApp Groups API, which caps each group at 8 participants. DoubleTick adds a few more conditions:

• API numbers only. You need a Cloud API number outside coexistence, on an Official Business Account.

• Plan limits. Starter includes no groups. Pro and Enterprise include 5, and each extra group costs ₹50 a month.

• Coexistence numbers. Groups stay in the WhatsApp Business App, outside DoubleTick.

Periskope works with regular WhatsApp groups at their normal size and brings them into the shared workspace, with the tools teams need to manage WhatsApp groups at scale.

Example:

A real estate sales team has a WhatsApp group with a buyer, a sales consultant, a site-visit coordinator and the builder.

The sales manager needs to know:

→ Has the buyer's question been answered?
→ Who owns the next follow-up?
→ Did the site visit happen?
→ Is anything blocking the deal?

With Periskope, that group sits in the team's shared workspace, where the manager can see it, assign it and track it.

📌 At scale: A PropTech company manages 5,000+ groups with 50+ agents on Periskope.

Verdict: If your sales process runs through existing, larger WhatsApp groups, Periskope is built for it. DoubleTick's groups suit small, structured conversations on API numbers.

4. Routing leads to the right sales rep

Once several sales reps share a WhatsApp workspace, every new lead needs a clear owner. Both platforms handle this.

DoubleTick routes by team, department, region, language and agent availability.

Periskope routes with rules like these:

Verdict: Both are strong here. DoubleTick suits teams selling across languages and regions. Periskope suits teams working in shifts.

5. Syncing WhatsApp chats to your CRM

When WhatsApp is part of your sales process, your CRM should update itself.

DoubleTick has native integrations with Salesforce, HubSpot, Zoho and LeadSquared.

Periskope connects WhatsApp to your CRM and the rest of your stack in three ways:

• Native integrations with HubSpot, Zoho CRM, Freshdesk, Zohodesk and Google Sheets. The HubSpot integration links chats to contacts and companies, logs every new message to the linked record, syncs tickets, and triggers WhatsApp messages from HubSpot workflows.

• APIs and webhooks to connect WhatsApp with your internal systems or any other tool

• An MCP server to use your WhatsApp from Claude, ChatGPT and other AI tools

Verdict: Both connect WhatsApp to your CRM. DoubleTick has native Salesforce and LeadSquared integrations. Periskope goes deeper with HubSpot, and its APIs, webhooks and MCP server let you connect WhatsApp to almost any system your sales team uses.

6. Tracking sales rep performance and SLAs

Visibility is only useful if a sales manager can act on it: spotting slow replies, catching unanswered leads, and escalating before a deal goes cold.

DoubleTick offers productivity reports on response time and quality, plus AI checks on conversation quality and analytics across chats.

Periskope tracks response times, unanswered messages, tickets, resolution times and activity for each sales team member. It also creates tickets and escalations automatically when an SLA is at risk.

WhatsApp conversations → shared visibility → SLA tracking → escalation → faster response

The same setup runs at scale in high-volume teams. Treebo manages 3,000+ WhatsApp groups and more than 10,000 booking requests a month on Periskope, which assigns requests and escalates unanswered messages to keep a 15-minute response SLA.

Verdict: Both platforms give you team analytics. Periskope has the stronger track record for monitoring high-volume conversations and groups, with SLAs, escalation and conversation-level visibility.

7. Bulk messaging and campaigns

The two tools are built for different kinds of bulk messaging.

DoubleTick is built for outbound campaigns. It runs on the WhatsApp Business API, with broadcasts, campaign management, audience segmentation, Click-to-WhatsApp ads and campaign analytics.

Periskope is built for the conversations you already have. Its bulk messaging sends updates to the WhatsApp groups your team runs, with scheduling, recurring messages, variables, attachments and polls. It isn't meant for mass 1:1 outreach, since WhatsApp flags that kind of activity on regular and Business App numbers. For large outbound campaigns, an API tool like DoubleTick is the right fit.

Verdict: DoubleTick is the pick for outbound campaigns. Periskope's bulk messaging is built for keeping existing client groups updated, alongside the chats and team workflows your sales team runs every day.