Do you want to ask the question "Why is the electronic key for trademark application suddenly canceled?" The reasons for this situation are as follows:

1. The electronic key has expired or been revoked: In some cases, the electronic key will expire or be revoked due to various reasons, for example: the key has expired , the user has canceled the use permission of the secret key, etc. At this time, you need to apply for a new electronic key and resubmit the trademark declaration.

2. There are violations in trademark declaration, such as: the declared goods or services do not comply with regulations, the trademark name or logo has infringement, etc., which will cause the electronic key to be cancelled. At this time, you need to carefully check whether the declared content complies with the regulations, whether there is any infringement, and resubmit a trademark declaration that meets the regulations.

3. System failure or operation error of the Trademark Office. In some cases, the system of the Trademark Office will have a failure or operation error, causing the electronic key to be cancelled. At this time, you need to contact the relevant departments of the Trademark Office for help and solve the problem.