When trying to match a standard invoice to a credit memo through Quick credit functionality of R12 I

ORA-20001: APP-SQLAP-10000: ORA-01400: cannot insert NULL into ("AP"."AP_INVOICE_DISTRIBUTIONS_ALL"."PERIOD_NAME") occurred in

AP_QUICK_CREDIT_PKG.Full_Reversal<-AP_QUICK_CREDIT_PKG.Quick_Credit<-APXINWKB->Inv_Sum_Folder_Quick_Credit.Event

with parameters ( P_Invoice_Id = 47831285 P_Error_Code =  P_Calling_Sequence = AP_QUICK_CREDIT_PKG.Quick_Credit<-APXINWKB->Inv_Sum_Folder_Quick_Credit.Event)

while performing the following operation:

create distributions

ORA-06512: at "APPS.APP_EXCEPTION", line 72

ORA-06512: at "APPS.AP_QUICK_CREDIT_PKG", line 1372