What are the main skills that every warehouse supervisor must have to excel or succeed?

For me his accuracy is a very important.
All kinds of program will be learned but maintaining accuracy is something

The required skills could be divided into two kind of skills: personal skills, and managerial and scientific skills.
Both of them are possible to be gained, according to the willing of the supervisor.
The personal skills: the wisdom of the supervisor in dealing with the store keeper and workers.
Reading and understanding few books about human resources and the psychology of workers, will make you able to initiate and motivate them to follow the plans drawn.
The managerial and scientific skills in the field of warehouse management: here you have to study and implement few things like: - The knowledge with Products themselves and their MSDS as well.
- the Software that organizes the warehouse activities: ERP, SAP ....
- Coordination and continuous meetings with any related department: finance, production, sales, maintenance.
Finally, regardless to your knowledge with warehouse management, reading newest books and attending courses about warehouse management are good idea to keep your information updated,.

He must be an analitic person; he must ensure that shelves and racks complies with the requirements of volume, weight and preservation that indicates the manufacturer, he must ensure that the handling of materials are consistent with the standards of health and safety, he must ensure the minimum quantities required by the needs of operations; he must check materials from vendors, be received and process in the system inmediately; he must ensure that its staff are equipped with the tools and implements necessary for efficient work; the health and security must be guaranted for the integrity of workers and materials.