The location of your activation code depends on how you purchased the course material:
| Purchase Method | Location of Code | |----------------|------------------| | New printed Student’s Book | Inside the front cover, often on a card or a scratch-off panel | | Digital-only pack (e-commerce) | Sent via email after purchase (check your spam folder) | | Institution/school purchase | Provided by your teacher or school administrator | | Access card sold separately | On the back of the card, under a scratch-off silver strip | activation code cambridge one
⚠️ Warning: Do not scratch the silver panel too hard. Use a coin gently to avoid damaging the characters underneath. The location of your activation code depends on
If problems persist, contact Cambridge University Press & Assessment support (use the Cambridge One help/contact page) and have ready: activation code, proof of purchase, account email, and screenshots of error messages. ⚠️ Warning : Do not scratch the silver panel too hard
Even with a valid code, users sometimes encounter problems. Here are the most frequent issues and how to resolve them.
| Error Message | Likely Cause | Solution | |---------------|--------------|----------| | "Code already used" | The code was activated on a different account | Log into the original account. If you cannot remember it, contact Cambridge support. | | "Invalid code" | Typo or wrong case | Re-enter carefully. Try copying and pasting if possible. | | "Code expired" | Past the validity period (often 12–24 months post-purchase) | Contact your seller or Cambridge support. Some expired codes can be extended with proof of purchase. | | "Product not found" | Regional mismatch (e.g., a code for Latin America used in Europe) | Codes are often region-locked. You may need to contact the original seller. | | "Code not recognized" | Using the wrong platform (e.g., a Cambridge GO code on Cambridge One) | Ensure your product is for Cambridge One. Some Cambridge products use different platforms. |