Parallel import
This option is available only when using R3trans with "Import" command and causes performance gains. SAP advises starting with "parallel = 2" and adjusting as necessary based on server and database capabilities.
Please consider this for enabling the import using parallelism of R3trans:
1.: It is necessary, that the R3trans file was created using a command file.
2.: Do not specify the tables - leave the "Tables" field empty. The information about the tables is in the R3trans file, so the specification of the tables is not necessary. If a table is specified (or even all tables written into the R3trans file), a 'selective import' will be done by R3trans, which prevents R3trans from using parallelism.