Update of flow during data Load

Hello All,

We have a Flow type -  has been defined in our system in the Model.  We need to post to particular flow type based on accounts.  For Example, we have Short Term Payable and Long Term payable available as Flow Member.

If the Account is X - It will be classified as Short Term Payable.  If the Account is "Y" it should classified as Long Term Payable.  Is there is any possible in Data Manager package to write the logic based on Account.  But if we have large number of accounts then what is the best option to do.

Thanks & Regards,

Ram