Hi Preeti,
Before migrating the Check numbers in SAP from legacy, I would like to know the status of the associated payment documents; whether they have been migrated already in SAP or they are still in legacy System.
Option-I- If only check number are to be migrated then you can develop a batch input session (SM35) for the transaction FPCHN and use it in a custom program /LSMW to migrate the check numbers in SAP. Please remember to associate the corresponding payment doc along with the date of issue and Business partner during the migration.
Option-II- If both the payment doc as well as Check number has to be migrated, then firstly the payment document have to be migrated. It will be the same as migrating the GL balances with a separate GL a/c to load each item into the clearing account.
Once the activity is done, you can use the approach mentioned in Option-I to migrate the check numbers in SAP.
Once the above activity is done, you can use the following transactions-
FPCHESCH_START- To select the checks that needs to escheated and update information.
FPCHESCH_ESCH- To void the check and post a credit item to the State Govt. Contract account as configured.
Hope it helps.
Thanks,
Amlan