Field help (LOCPOS) 

Indicate in the location code, the position of the character on which a shortage is generated in the stock count lists.
Therefore, a location position equal to 3 means that all locations having a code with the first 3 characters identical are in the same list.
SEEINFOThis field can only be accessed if the stock count type is by Location. All the lines for a single product are necessarily grouped in the same list.