Diagnosis
Selection conditions can be used to restrict the data set selected whena database table is accessed (billing due list, billing document). Priorto the database access, these selection conditions are converted intocomparison values (known technically as "WHERE" conditions). However,only 64 KB memory is available for all of the "WHERE" conditions for theaccess to the database table.
For the case in question, an internal check has detected that thespecified comparison values together require more than 64 KB memory.

Procedure
Further restrict your selection conditions, for example, by specifyingdocument number intervals, date intervals, and so on.