when i try to post incoming pmt from customer, system throws following error
Document splitting cannot perform clearing because it was not possible to find complete splitting information on the items to be cleared (company code 1000, document number 4, fiscal year 2009, item 001).
Clearing cannot be performed and the document cannot be posted.
Exclude the affected item from clearing.
It may be that this item was not posted with active document splitting. In this case, this item or document would have to be migrated.
how to migrate item/document ?
Check this link below on how to migrate document for document splitting.
Before you can activate and use document splitting, you need to have created certain datasets for the existing documents. To do this, you need to migrate open items for document splitting. Add any missing document splitting characteristics in the documents to be split. This is obligatory if you have set these characteristics as required entry fields in document splitting (see the section Defining Document Splitting Characteristics for General Ledger Accounting in Making Settings for Document Splitting).
For more information on the migration tools, see the Implementation Guide for Financial Accounting (New).