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Twilio phone numbers in Oracle Messaging
Answer ID 13154   |   Last Review Date 07/09/2026

Why are Twilio phone numbers not appearing during Oracle Messaging configuration?

Environment:

Chat, Oracle Messaging
Oracle B2C Service

Issue:

When configuring a Twilio channel in Oracle Messaging Administration, after the Twilio credentials are accepted, at Step 2 of the configuration wizard, no phone numbers are available for selection.

Resolution:

A Twilio phone number can only be associated with a single Oracle B2C Service site.

During the configuration process, Oracle Messaging displays only the Twilio phone numbers that are available for the current site. If all phone numbers in the Twilio account are already associated with other Oracle B2C Service sites, no phone numbers will be available to select during Step 2 of the configuration.

For example, if a Twilio account contains two phone numbers and they are already assigned to two different Oracle B2C Service sites (such as a production site and a test site), configuring an additional site with the same Twilio account will result in an empty phone number list.

To configure an additional Oracle B2C Service site, one of the following is required:

  • Purchase or provision an additional Twilio phone number in the same Twilio account, or
  • Unassign an existing phone number from another Oracle B2C Service site so that it becomes available for use.
     

After an available phone number exists in the Twilio account, this should appear in Step 2 of the Oracle Messaging Administration configuration wizard.

See also the Add a Twilio SMS Channel documentation page.