Do you know why is it not able to createdSalesperson Information in Manage Resource?

Do you know why is it not able to createdSalesperson Information in Manage Resource?

I tried to create Sales Person in order to input Sales Credit in Project Contract. Now Sales Credit is a situation where no options are available to Sales Credit.

We think that if we create a sales representative for this, it should become an option.

First, we assigned the user the resource role of Salesperson,

Next, we tried to put in the sales representative information, but the set is not showing up as an option.

Are there any steps missing to display the set?

Do you have any informations, plase let me know.