Taobao ban means that some functions of your account are restricted for a certain period of time, including posting products, editing products, transaction management, etc. In this case, you can open a store, but it may be affected as follows:

1. Limited store operation: During the ban period, your operation rights on Taobao are restricted, and you may not be able to handle customer inquiries, after-sales and other issues in a timely manner, affecting the normal operation of the store.

2. Limited marketing activities: During the ban period, you may not be able to participate in Taobao's marketing activities, such as Double Eleven and Double Twelve, which will affect the exposure and sales performance of the store.

3. Impact on reputation: If your store violates the rules during the ban period, it may affect the store's reputation and further affect the development of the store.

4. Reduced customer trust: Consumers may question the trustworthiness of the store if they find that the store customer service cannot communicate normally during the shopping process, which may affect their purchasing decisions.

Nevertheless, you can try to open a store during the ban period. In order to reduce the impact, it is recommended that you understand the relevant policies in advance to ensure that the store operates in compliance. At the same time, you can consider arranging other personnel to be responsible for the daily operation of the store to ensure that customer needs are met in a timely manner.

Please note that the specific time and impact of Taobao bans vary from case to case. It is recommended that you pay close attention to your account status and comply with platform regulations to avoid affecting the normal operation of the store.