Creating archive policies
When an archiving policy is run, the names of all the tables being archived are written into the WBATD_TABLE_NAMES column of the WB_ARCH_TRAN_DET table. In addition to the tables configured in the policy, dependent tables that require archiving are also included in the transaction log. The size limit for this column is 1000 characters, which is sufficient for all core policies.
Note: As a best practice, you should not configure more than 20 tables in a custom archiving policy. WFM tables have a maximum name length of 30 characters, so 20 tables and their dependent tables can be handled within the 1000 character limit.