3622352 - Unexpected items show in the cost distribution details for additional cost debit items

When creating new additional cost debit items, inbound delivery ID was used to search for the invoice item. However, there are unexpected items shown in the cost distribution details table that are not relevant to the inbound delivery.

SAP Business ByDesign

1. Go to Supplier Invoicing work center.
2. Navigate to New Invoice Without Purchase Order.
3. Provide mandatory details like Supplier , External Document ID, Invoice Date, Receipt Date and Posting Date.
4. Select View All.
5. Navigate to Page Items.
6. Choose Add Row under sub-view Items.
7. Select type Additional Cost Debit Item.
8. Provide an appropriate Description, Tax code , Quantity, Net-Price.
9. Navigate to Sub-view Item Details and choose Cost Distribution.
10. Select Distribute among other invoices or credit memos.
11. Provide the Inbound Delivery ID in the opened dialog box.
12. Choose Distribute.
13. Items that are not relevant with the inbound delivery also shown in the Cost Distribution Details table.

By default, the system distributes the costs to all of the regular supplier invoice items, regardless the inbound delivery item distribution on the regular supplier invoice.

This is the current system design.

The accountant can manually change the cost distribution, by removing the unexpected items. Based on the manual entry, the system adjusts the remaining amount/percentage. 

Help Portal: Distributing Costs and Quantities Among Invoice and Credit Memo Items | SAP Help Portal

cost distribution details, additional cost debit item, unexpected items, inbound delivery , KBA , SRD-SRM-SI , Supplier Invoicing , Problem