Negative carry over sholud not be allowed in fast formula

Question

Hi,
I have coded like this so that it will not allow negative carry over (note: no expiry for carry over )
but this will not work since line 8 will bring just carry over from the previous year.
To get absence i can use get_absence function.so if i get no of absence ,total carry over and total accrual pto i can calculte net entilement.
but to get Total accrual PTO in carry over formula , I am not able to use the procedure
PER_ACCRUAL_CALC_FUNCTIONS.Calculate_Accrual.If I use i get error as
ORA-20001: The formula XXCHR_CR_VACATON_ACCRUAL_FORMULA could not be executed because the context ASSIGNMENT_ACTION_ID was not set. All the relevant context values must be set before a formula can be executed.
Action: If this is custom code then please ensure that it sets all the appropriate context values. If this is not custom code then please contact your local support representative.
ORA-06512: at "APPS.PER_FORMULA_FUNCTIONS", line 608
ORA-06512: at "APPS.PER_ACCRUAL_CALC_FUNCTIONS", line 70
ORA-06512
so how do I not allow negative carry over.
1 Years_service = floor(months_between(Effective_date, Continuous_Service_Date) / 12)
2 IF (GET_ACCRUAL_BAND(years_service) = 0) THEN
3 L_Max_carryover = GET_NUMBER('MAX_CARRY_OVER')
4 ELSE
5 L_Max_carryover = 0
6 Max_Carryover = L_Max_carryover
7 l_exp_Effective_Date = ADD_YEARS(Effective_Date,-3)
8 L_tot_carryover = GET_CARRY_OVER(Effective_Date,to_date('0101'||to_char(Effective_Date,'YYYY'), 'DDMMYYYY'))
9 IF L_tot_carryover <0 THEN
10 (Max_Carryover = 0)
11 Process = 'YES'     
12 RETURN Max_Carryover, Effective_date, Expiry_Date, Process
tnx in advance

Answer 1

there are seeded Accrual formulas given out of the box, which you can edit for your purpose