Does retroactive billing takes primary document in cahnge mode

Hi

Outputs are getting triggered in primary document when retro active billing is done. For example

output record was created on 01/04/2013 and retro active billing is carried out on 02/04/2013 for 01/01/2013 to 01/03/2013 period. we are getting new output triggered for primary document.

Output can only be triggered if we have some how taken the primary document in change mode.

Regards

Anshul