Paris Hilton is said to be "beyond upset" at being refused entry in Japan on the grounds that she is on probation for drugs.
According to a close pal, the socialite is very upset with the incident and is looking forward to go back to Japan in future, reports femalefirst.co.uk.
"Paris is beyond upset as she was looking forward to this trip for months. Paris doesn't want to let down her business partners, nor her fans," the pal said.
"Paris loves Japan and Asia and is hoping this can be sorted out so she can proceed with the meetings, store opening, and meet her fans."
According to Paris' representative, she was to visit Japan and then head to Jakarta, Indonesia, to open a Paris Hilton shop before concluding her Asia trip in Kuala Lumpur, Malaysia.
"Paris was contractually bound to her business trip and didn't want to let down her brands and many Asian fans," said her representative.
Hilton had earlier appeared in a Las Vegas court and pleaded guilty of possessing cocaine and obstructing a policeman. She was given a 12-month suspended jail term.