in me21n in the vue expedition where does the client number (kunnr) come from ?

[CADAM1]

Hello , can someone help with the following. in me21n in the vue expedition where does the client number (kunnr) come from ? to which other data is it linked ? thanks 

[jagdeepsingh83]

Needs more details --can you put a screenshot of that ?-- if you check T001W --there customer # assigned to plant-not 100% if you are looking for that info or something else.