Adding Custom Logic to SAP Batch Numbering System

The SAP Batch Numbering System is used to identify and track batches of products or materials that have been produced or received under similar conditions. Each batch is assigned a unique batch number that is used to record information such as the date of production, the production location, and the quality control test results.

The SAP Batch Numbering System is designed to provide a consistent and structured approach to batch numbering across all SAP modules. The system is based on a combination of alphanumeric characters and can be customized to meet specific business requirements.

One of the best ways to add custom logic to the SAP batch numbering system is using a user exit. I am going to discuss how we can add custom logic in the SAP batch numbering system using customer exit "SAPLV01Z".

Features of the Exit

• Material specific or material type specific different number range can be assigned for automatic batch numbering system.
• Automatically generated batch number can be changed with the custom numbering logic.

Components of the Exit

There are two function modules assigned to this user exit.

First function module is used to assign material specific or material type specific different number range assignment. Second function module can be used to add custom logic for the batch numbering system.

EXIT_SAPLV01Z_001

Importing parameters for this function module is X_BNCOM structure which is used to import the data for the object for which the batch number needs to be assigned.

For example: If we want to assign a batch number for a production order. X_BNCOM structure will import all the relevant data for that production order. We can use these data to identify our required production order for which we want to change the batch number using his exit.

There are quite a few changing parameters for this function module which give us the provision of assigning different number range for different material type or material itself.

To assign different number range for different material types or materials we need to execute below tasks.

1. Assigning a new number range in the transaction "SNRO" for the object "BATCH_MAT" for the required material type.
2. Then we can use this newly created number range for different materials

EXIT_SAPLV01Z_002

Importing parameters for this is same as for the previous function module. We can use this parameter for the same purpose we have mentioned earlier.

There is only one changing parameters for this function module which is NEW_CHARG. The purpose of this exporting parameter is to change the internally assigned batch number into custom one.

For example, suppose we want to assign a custom batch number at the time of production order release. We can assign automatic internal batch number to that production order using SAP standard functionality. After implementing that standard functionality, we can write a custom logic in this function module and assigned it to the changing parameter "NEW_CHARG".

As a result, SAP will assign an internal batch number at the time of production order release which will be replaced by the custom logic we have provided in this function module.

Consideration

To implement this user exit we must have to enable below functionality in the transaction code "OMCZ"