Limitations

Following are the limitations for a trial tenant:

Limit	Value	Description
Maximum duration of a trial tenant	`90`	By default, a trial tenant is available for 90 days. The trial period may be extended after discussion with the account manager.
Maximum number of contacts per contact list using file upload	1,000	A contact list uploaded manually can contain up to 1,000 contacts.
Maximum number of contacts per contact list using SFTP	1,000	A contact list uploaded using SFTP can contain up to 1,000 contacts.
Maximum number of active contact lists per campaign	3	A campaign can have up to 3 active contact lists at a time.
Maximum number of simultaneous campaigns	10	Up to 10 campaigns can run simultaneously.
Maximum number of contacts per dialer submission	20	Up to 20 contacts can be submitted to the dialer in a single submission.

The values are case-sensitive when applying filter conditions.
The global variable labelled as "Customer/Account Unique Identifier" must remain active in the Control Hub. If it becomes inactive, it can disrupt field mapping and suppression list functionality.
In the Contact flow priority section, encrypted attributes are not shown in the Contact attribute field. Additionally, you cannot modify the priority attribute once a campaign has been paused.
PII fields with a "varchar" data type supports only the 'Equals' and 'IN' operators in the Fresh and Retry Search and Selection filters. Other PII attributes that aren't of type string will not appear in the Contact attribute field.
The system allows multiple call attempts to the same phone number even if it appears multiple times within a single list or across lists in the same campaign. Duplicate contacts removal is not supported.
Contact selection filter using date attributes rely on the system date during execution.
Avoid using encrypted global variables in suppression rules.
The header text used in field mapping must match exactly—including case sensitivity—during file import. This applies to both manual file uploads and SFTP-based import.
The Do Not Call (DNC) list can contain up to 1 million records.