problem in inserting values to userfields

hi

i am facing problem when i am inserting values in to ueser fields . for inserting code and name i am auto incrementing those values . up to 10 records i am getting fine but the value is not incrementing to 11 and i am not getting any error or exception. i am unable to understand the problem . is there any configuration for that can anyone help me regarding this concept .if any configuration how to do that . i am accessing B1 database using DIAPI.

regards

om prakash