KEY and Label Confusion

[bomexport_indus]

HI,

i’m using two tables the first one named [FICHES PRODUIT] the second one named [CLIENTS]

in the first table [FICHES PRODUIT] i have column named “NOM DU CLIENT” that refers to the table [CLIENTS] in order to select or add the customer name…So the Column data type of "NOM DU CLIENT is REF

After sycing the app, my spreadsheet NOM DU CLIENT column mentions the Customer KEY and not his name (attached some pictures to get better idea about this problem)

Please help with that because it looks like this problem will affect my APP later.

With many thanks !