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Migration of Payment Items From Clearing
Accounts 
When accounts are migrated that were processed in the previous system with a clearing procedure, you need to migrate cleared items as well as those that have not been cleared so that proof and corrections are possible.
Since items of the account to be migrated may already be archived, you need to include four quantities of items in the migration:
· Quantity 1: Cleared items in the archive whose offsetting entries are not yet archived.
· Quantity 2: Cleared items in the position whose offsetting entries were archived.
· Quantity 3: Cleared items with the corresponding offsetting items in the position.
· Quantity 4: Items in the position that have not been cleared.
During the migration of the clearing account, you either need to migrate the items in quantity 1, or exclude those in quantity 2 from the migration.
In the previous system you transfer existing references of items to be cleared in the External Clearing Reference of Payment Item (REF_EXTERNAL_CLEARING_ITEM_ID) field.
You can then use the report Clear Payment Items With External Clearing Reference (RBCA_CLEARING_EXT_RUN_PP) to assign these items with an internal clearing reference, to be able to clear them in the new system.