You want to change the calculation of VAT but the system does not allow to change the standard calculation.
Reproducing the Issue
- Go to Customer Invoicing Work Center.
- Select the Invoice Documents view.
- Search for the Invoice ABC (ABC represents the ID of the Invoice Document ).
- Click in the button View All.
- Go to Items tab.
Here you will see VAT is calulated based on Net Price. In Business Configuration, Configure Price Strategy activity is available but system is not allowed to change the standard calculation.
The system works as expected. This is the designed behavior of the system.
The standard way to calculating the VAT is on the net price.
However as workaround to calculate the VAT the partner BADI PDI_ES_PATC_CALCULATE_TAX can be used by using the tax base amount in the extended field.
KBA , SRD-CC , Cross Components , How To