Userfield in ITM1

Hello,

I have added a userfield in table ITM1. It's ok, the userfield appears in the table but i can't access it or update it.

I get the following message :"Invalid field name"

This is my code for updating the userfield :

oItem_Price.UserFields.Fields.Item("u_slb_coef3").Value = 12

Have you ever add a userfield in this table ??

Have you some idea ???

Thank you .

Jocelyn