SAP Message 56436 - Trip provision variant & is not yet assigned to a country group

Diagnosis
The trip provision variant you have chosen is not assigned to a country
group. Since the industry sector IDs are specified for each country,
no industry sector ID can be maintained for this trip proision variant.

Procedure
If required, assign the trip provision variant to a country group inCustomizing for Travel Expenses in the view 'Global Settings' and
then set the industry sector ID.