請幫忙修改

If you're writing a notice to serve as a warning to everyone, here is an example :

Notice :

Please do not leave goods permanently/more than 2 weeks at the rear entrance of the office. Note that this door is reserved for periodical transfering of raw materials for all departments, and any obstruction to the pathway may caused great inconvenience to whomever that might be concern.

Thank you for your cooperation

From the mangagement staff
Miss xxx

Ther rear entrance should be kept clear for movement of materials. I've notices that some (or XXX) department have/has some items stock in that area for over a month. Please make every effort to remove the items as soon as possible to avoid interference with normal daily operations.

The rear entrance is mainly use for flow of raw materials.
Putting things there for a long period of time will affect the company's daily operation.
I 've noticed that the things there, are the ones that were reserved for department a month ago.