You don't know how to scope a so called 'tax basic country' and the country does not have the visibility flag.
SAP Business ByDesign
Reproducing the Issue
1. Go to the Business Configuration work center
2. Select Implementation Projects view
3. Edit Project Scope
4. Click on Edit Countries
5. The (tax basic) country is not available among the countries to scope
Tax basic countries are not available for scoping because there are some specific prerequisites, which should be first configured by SAP partner. Examples of tax basic countries are: Ireland, Czec Republic, Luxembourg, Kingdom of Saudi Arabia, Macao, Barbados etc.
Please contact your SAP partner. Once these prerequisites are configured by your partner, the country will be visible in the scoping questions.
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Tax basic countries, Ireland, Macao, Barbados, Luxembourg, visibility flag , KBA , AP-GLO , Globalization , How To