Billing: Create Custom Outsort Check (Part 2)

1. Create custom function module starts with ISU_VAL_<Biling Validation Name>  with the following parameters:
• Importing
• X_TE327                LIKE TE327
• Changing 
• XY_OBJ                 TYPE ISU2A_BILLING_DATA
• XY_OUTCNSO LIKE ERCHO-OUTCNSO
• Exceptions
• GENERAL_FAULT
2. Validation parameters are set in X_TE327
3. Call FM 'ISU_OUTSORT_IERCHO_WRITE' if needed to outsort the billing document
4. Please refer to the following on how to configure outsorting check groups for billing:
• Billing: Define Outsorting Check Groups for Billing
• Billing: Define Checks per Outsorting Check Group for Billing

Billing: Create Custom Outsort Check (Part 1)

1. Go to SPRO -> SAP Utilities -> Tools -> System Modifications -> User-Defined Enhancements for Billing -> Define Check List for Billing
   
2. Enter new billing validation name, and text for the parameters
   

Unbilled Revenue: Tips 1: 020 (EBW) Update group not entered in billing document &1

Symptoms:

1. Simulated bill is billed successfully AND
2. Simulated bill data not found in Step 5 AND
3. Reversal of simulated bill data is found in Step 5

Reasons:
SAP is expecting Update Group is populated when comes to simulation for Unbilled Revenue (Even if "Initial Update Group Is Allowed" is set to 'X')

Solutions:
Unbilled Revenue: Prerequisites 2: Update Group Determination