VAT
Under Assignment → VAT, posting group mappings can be defined after, or for temporary, VAT changes.
This assignment is required for item returns that were sold before the relevant VAT change.
For manual returns, the system first uses the current posting groups to determine whether a mapping exists for them. If so, a selection must be made to specify whether the return takes place inside or outside the stated period. Inside the period, the currently valid VAT and the current posting groups are used; outside the period, the stored Ret. VAT % together with the stored Ret. posting groups are used.
For receipt returns, this manual selection is not required because the original VAT is determined automatically during the return and filtered to Ret. VAT %, so the mapping of the stored Ret. posting groups is applied automatically.