# sib_transactional_sms.sendtransacsms: Sendinblue Package for Transactional SMS operations that could not be mapped to a table. sib_transactional_sms.sendtransacsms: Sendinblue Package for Transactional SMS operations that could not be mapped to a table. Send a transactional SMS message to a single mobile number. The `sender`, `recipient`, and either `content` or `templateId` fields are required. The sender name is limited to 11 alphanumeric characters or 15 numeric characters, and the recipient must be a valid international phone number (6-15 digits, optional leading +). Tags can be a string or an array of up to 10 strings. The SMS type defaults to `transactional` but can be set to `marketing`; if the content includes a stop code, it is automatically treated as marketing. Returns the message ID, SMS count, credits used, and remaining credits.