When planning travel itineraries that involve transit through other countries (e.g., Czech Republic when traveling from Budapest to Berlin), it is important to accurately declare these in the visa application. If the transit is brief and does not involve leaving the transit hub (airport/station), it might be advisable not to explicitly list the transit country in the travel plan to avoid potential complications, unless a visa sticker explicitly prohibits entry into that country. If the travel plan includes overnight stays or significant time spent in transit countries, it should be clearly stated in the application.
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