Cost Assignment Change on Header Level

Got the Solution from Development Colleagues:

If a traveler change the cost assignment from cost object A to cost object B at the top level of an expense report, then all expenses which are assigned to the cost object A at change moment(!) should get the new cost assignment to cost object B.

All expenses which are assigned to a different cost objects as A will be not changed!

Example 1:

Step 1. Traveler created an expense report with the cost assignment to cost center A

Step 2. Traveler added 3 expenses

=> Expected result: all 3 expenses should get the assignment to the cost center A

Step 3. Now traveler changed the cost assignment on top level of the meeting request to the project B

=> Expected result: all 3 expenses should get the assignment to the project B

Example 2:

Step 1. Traveler created an expense report with the cost assignment to cost center A

Step 2. Traveler added 3 expenses

=> Expected result: all 3 expenses should get the assignment to the cost center A

Step 3. Traveler changed manually the cost assignment of one expense to internal
order D

=> Expected result: 2 expenses are assigned to the cost center A and one expense is assigned to the internal order D (because of manually change!)

Step 4. Now the traveler changed the cost assignment on top level of meeting request from the cost center A to project B

=> Expected result: only 2 expenses which were assigned to the project A are now assigned to the project B, the one expense which was assigned to the internal order D should be still assigned to the internal order D (it is not assigned to the cost center A and therefore not affected by the change from cost center A to project B).