Using UPCS codes
What to Do When a Code Shows the Wrong Place
If a UPCS code opens on a place you did not expect, use these checks to find the cause: typing errors, wrong cell, or wrong country.
Updated 14 October 2026 · 2 min read
A code that opens somewhere unexpected is usually a copy error or a slightly misplaced choice, not a fault with the system. Work through these checks.
1. Check the code itself
- Compare the code you looked up with the original, character by character.
- Look for letters and digits that resemble each other, such as O and 0, or I and 1.
- Make sure the hyphens and both blocks are present, as in
PK-1A2B-3C4D.
Copy and paste instead of retyping wherever possible. See pasting a code into the search box.
2. Check the country
The first two letters are the country prefix. A wrong prefix would put the code in the wrong country. The lookup page shows the country in full.
3. Check where the cell sits
A code covers a 3 m by 3 m cell. If the marker is a few metres off, the creator may have chosen at a low zoom level. Use Open in Map to see where the marker sits, then zoom in on the UPCS map, as described in checking you chose the right spot.
4. Ask the sender
Ask the person who sent the code to look it up themselves and tell you what they see. If they intended a different spot, they should choose it again on the map and send you the new code. Verifying a code someone sent you explains the process.
5. If you created it
Go back to the map, zoom in to the entrance and choose the right cell. A different cell gives a different code, so be sure to share the new one.
If none of these explain it, your normal address remains the safest fallback to share alongside any code.
Frequently asked questions
Can a code be corrected after it is created?
A code is derived from coordinates, so the same place always gives the same code. If it is wrong, choose the correct location on the map to get the right code.