Becomes an unallocated sales payment on account (SA).
Purchase payment (PP)
Becomes an unallocated purchase payment on account (PA).
Sales invoice (SI)
Retains the same code (SI), but is unallocated from the transaction they were previously linked to.
Purchase invoice (PI)
Retains the same code (PI), but is unallocated from the transaction they were previously linked to.
Sales credit (SC)
Retains the same code (SC), but is unallocated from the transaction they were previously linked to.
Purchase credit (PC)
Retains the same code (PC), but is unallocated from the transaction they were previously linked to.
Sales payment (SP)
Retains the same code (SP), but is unallocated from the transaction they were previously linked to.
Purchase receipt (PR)
Retains the same code (PR), but is unallocated from the transaction they were previously linked to.
Sales discounts (SD)
Becomes an unallocated sales credit (SC).
Purchase discounts (PD)
Becomes an unallocated purchase credit (PC).
Multiple allocations
If more than one transaction is allocated to another transaction, only the transaction unallocated becomes unallocated. For example, two sales invoices are allocated to a sales receipt, if you unallocate one of the sales invoices, the other remains allocated to the sales receipt.