Label setup consists of defining Label Formats, Label Sets and Custom Label Fields against the different inbuilt label types. Next you need to complete label format assignment rules & associating Label Types to Business Flows.
Before you can specify label generation points and construct label format rules, you must define printer and assign printer IPs if required for synchronous direct XML printing.

Defining Label Formats and Sets
When you define label formats and sets, you are setting up the data fields to include on a particular label. You can use system-seeded fields or create custom fields to include on a label.

When you create a label set, you can associate multiple label formats of the same label type together. When you select the label set for printing, then the system prints all of the formats within the label set. You can create label sets for the following label types: LPN, LPN content, material, and serial.

To define label formats & set navigate to the Define Label Formats and Sets window.

1.1. In the Label Type field, use the list of values to select the label type for which you want to define label formats.
1.2. Select the entity type. If you select format, you can create a label format. If you select Set, then you can create a label set.

2.1. In the Label Formats region, Name field, enter a name for the label.
This name should be the name that is recognized by the third-party printing software.
2.2. Enter an optional description to describe the label format.
2.3 In the Disable Date field, enter an optional date on which this label format can no longer be used.
2.4. Select the Default Label check box to identify that this label format will be used as the default label type if the system cannot find a rule that determines the label format.
Note: You can specify only one label format as the default label. and you must disable printer assignments for label formats before you can delete individual label formats.

3. Click Label Fields to open the Define Label Field Variables window, or click Define Sets to define sets to open the Label Sets window.
3.1 In the Label Fields region, Field Name field, use the list of values to select the data element that represents the field on the label.
The label type that you selected in the Define Label Formats window determines the list of values for this field.
Note: Custom label fields that you created also appear in this list. A value of Yes in the Custom SQL column indicates the field is a custom SQL field.
3.2 In the Field Variable Name field, enter a unique text string that will be used as a variable to represent the data field on the label format. Enter an optional description for the field variable name.
This field variable name is used in label design application (LDA).
Note: First you create a label format in oracle WMS. After that you need to design the label in any LDA with the field variable name defined in WMS. In case of direct XML label printers you need to upload the label file to the printer so that it can map all the fields that come from oracle WMS.

4. Adding Label Formats to a Set
To add label formats to a set you select from previously defined label formats. When you print the label set, the system prints all of the labels assigned to the set. You can add a label format to a set more than once. If you do so, the label prints more than once.