Process Group - Select this radio button to initialize billings by process group. Billings are generated for all contracts that are assigned the specified process group.For T&M billings, if there are customers (without contracts) assigned to the process group, those billings are processed first, using the template assigned to the customer (in the process group). Customer billings will include a bill header and lines, but no JC detail.
Contract Range - Select this radio button to initialize billings by contract. Billings are generated for all contracts in the specified range.