WhatsApp BSUID Changes and What They Mean for Zoho SalesIQ

WhatsApp Business-Scoped User IDs (BSUID) and Zoho SalesIQ

Meta is rolling out Business-Scoped User IDs (BSUIDs) as the primary way to identify customers on the WhatsApp Business Platform, supporting WhatsApp's upcoming username functionality, where customers may interact with businesses without exposing their phone number. This has a genuine, practical implication for how Zoho SalesIQ handles some WhatsApp conversations, particularly template-based follow-ups after a conversation has gone quiet.

How BSUID Works

BSUID isn't something you request or configure. Meta generates a unique Business-Scoped User ID automatically for every customer-business relationship. When a customer messages your WhatsApp number, Meta includes the BSUID in the webhook payload, and SalesIQ receives and stores it automatically as the primary customer identifier for WhatsApp conversations.

Previously, Meta also included the customer's phone number in every webhook. With WhatsApp usernames, that's no longer guaranteed. A customer using a username may now arrive identified by BSUID only, with no phone number attached at all.

When a Phone Number Is Still Available

A phone number is still included if either of these applies:

  • Your business number and the customer have exchanged a message or call within the previous 30 days.
  • The customer's phone-to-BSUID mapping already exists in Meta's Contact Book, which is populated automatically through genuine interactions occurring after April 2026.

If neither condition applies and the customer is using a username, the webhook contains the BSUID only.

If you genuinely need a customer's phone number during an active conversation, you can request it. The customer sees a prompt in WhatsApp asking whether they want to share their number, and can accept or decline. Accepting delivers the phone number via webhook and stores the mapping going forward; declining means the conversation continues on BSUID alone.

What This Means for SalesIQ

For most WhatsApp conversations, there's no change to the existing experience.

Conversations Within the 24-Hour Window

If a customer messages you and the conversation is within WhatsApp's 24-hour customer service window, you can continue it as usual. This flow is entirely unaffected by the BSUID change.

Reopening a Conversation Using a Template

The scenario to be aware of: If the 24-hour window has expired, the customer is identified only by BSUID with no phone number, and you attempt to reopen the conversation using a WhatsApp template, this currently doesn't work. SalesIQ's underlying Instant Messaging platform doesn't yet support template-based reopening using BSUID alone. This is a genuine, current limitation, not a bug, and the team is working on supporting this scenario. As Meta enables BSUID-only identification in more regions, this is a situation you may increasingly run into.

WhatsApp Broadcast

No impact here. WhatsApp Broadcasts sent using phone numbers continue to work exactly as before.

At a Glance

ScenarioCurrent Status in SalesIQ
Customer identified with BSUID + phone numberSupported
Customer identified with BSUID onlySupported for active conversations
Continue/reopen conversation within the 24-hour windowNot affected
Template reopen after 24 hours, phone number availableSupported
Template reopen after 24 hours, BSUID onlyNot currently supported
Broadcast using phone numbersNot affected

A Worked Example

A retail customer in a region where Meta has enabled BSUID-only identification messages your WhatsApp number about a product return. An operator handles the conversation and initiates the return process, then the customer goes offline. Twenty-six hours later, the operator tries to send a WhatsApp template message to follow up on the return status. Because the customer arrived with a BSUID only, and no phone number was collected during the active conversation, the template send fails, and the conversation can't be reopened.

The practical takeaway: If your workflow depends on template-based follow-ups after the 24-hour window, collect the customer's phone number during the active conversation itself, while it's still possible to do so, rather than assuming you'll be able to reopen the conversation later on BSUID alone.
Need help? 1 Cloud Consultants can help you adapt your WhatsApp workflows in Zoho SalesIQ to collect phone numbers proactively and avoid template reopen failures caused by BSUID-only identification. Book a discovery call with 1 Cloud Consultants.