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The Business Scoped User ID (BSUID) is the new unique identifier Meta uses to represent users within WhatsApp Business. With the arrival of Usernames, some users will stop sharing their phone number with businesses. In those cases, the BSUID is the identifier that lets you keep sending and receiving messages without disrupting the conversation.

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What is the BSUID?

The Business Scoped User ID is an identifier automatically generated by Meta for each WhatsApp Business user. Its format looks like this:
It is made up of:
  • A two-letter country code.
  • A period (.).
  • A unique alphanumeric identifier generated by Meta.
Unlike a phone number, the BSUID cannot be modified or chosen by the user.

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Why did Meta create the BSUID?

Meta introduced the BSUID so users can contact businesses using a Username while keeping their phone number private. This means businesses no longer need to rely exclusively on phone numbers to identify a customer.

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What changes for businesses?

Previously, every conversation included the user’s phone number. With this update, some users will share only their BSUID.
This change is transparent for Jelou customers, since the platform supports both identifiers.

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Rollout timeline

Meta has rolled out this functionality in stages.

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BSUID support in Jelou

Jelou already supports the BSUID across the entire platform. This means:
  • You can keep sending and receiving messages whether the user shares their phone number or uses a Username.
  • No additional configuration is required.

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Important considerations

  • The BSUID is a unique identifier automatically generated by Meta.
  • It cannot be edited or customized.
  • The same user keeps the same BSUID for your business.
  • Username adoption is gradual, so phone numbers and BSUIDs will coexist for some time.
If your business has external integrations or custom developments that consume data from Jelou, review and update them to make sure they can process the BSUID as the user identifier.

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API documentation

We updated our API documentation to include examples and BSUID support. See the following guides:

Send messages

Send messages using either the user’s phone number or their BSUID.

Single campaign send

Send templates to a recipient identified by BSUID.