Purpose
RFID (Radio Frequency Identification) removes many of the limits of traditional barcode scanning. Barcodes require line-of-sight and can only be scanned one at a time, which slows down work and increases the chance of user error.
RFID tags work differently. They do not need to be visible, and multiple tags can be detected simultaneously. This helps users scan faster, reduce manual effort, and improve accuracy in warehouse and production environments.
Liquid UI supports RFID scanning for both online and offline SAP workflows. RFID functionality is available on Android devices running versions 8 through 12, when used with a supported RFID reader (such as a Zebra handheld). Once connected, the reader detects tags and Liquid UI transfers the captured values directly into SAP input fields.
How to Use RFID in Liquid UI for Android
You can scan RFID tags using the Zebra RFID scanner in any of the following ways:
- Select the RFID option when you are in any SAP transaction. The connected Zebra RFID scanner will then scan the RFID tags and automatically transfer the tag data to the RFID Reader screen. You can copy a single tag for input fields and multiple tags for long text and clipboards.
Note: Actions can be performed only if the focus is on any input field or long text field when you select the RFID option.
- Open the Liquid UI for Android app and navigate to any SAP transaction. For instance, here we have navigated to VA01 (Create Standard Order: Initial Screen). You can see the RFID option on any SAP input field pop-up, as shown below.
- If the device is connected successfully, the Liquid UI RFID Reader screen opens, and the reader becomes ready for scanning. Press the trigger on the RFID device to start scanning.
- A connection-failure screen appears if the device or reader is not detected. The following image is an instance of the RFID Connection Failure.
- Once scanned, you can find the scanned tags under Tag Data on the RFID Reader screen, as shown below.
- If the device is connected successfully, the Liquid UI RFID Reader screen opens, and the reader becomes ready for scanning. Press the trigger on the RFID device to start scanning.
- Scanned RFID Tag: The following is an instance of copying a single tag:
- Multiple RFID tags: You can scan multiple tags using the RFID option. Once scanned, you can copy the value to the desired input fields and clipboards.
Actions Available on the RFID Reader Screen
Liquid UI RFID Reader screen contains four options, DONE, TAB, ENTER, and COPY TO CLIPBOARD, to copy the scanned tags to the input field on an SAP transaction, as explained below.
Note: A valid warehouse license must be installed to use these options.
- DONE: Copies the scanned value to the desired input field.
- TAB: Copies the scanned value to the desired input field and moves the cursor to the next input field.
- ENTER: Inserts the scanned value into the input field and performs Enter.
- COPY TO CLIPBOARD: Copies the scanned data to the clipboard.
- You can also copy multiple RFID tags at a time using the COPY TO CLIPBOARD option, as shown below.
More Actions Available on the RFID Reader Screen
Click on More Options (⋮) situated on the top-right corner of the screen for additional options, as shown below.
- REFRESH: Click on this to refresh the screen.
- SELECT ALL: Selects all the tags on the RFID Reader screen.
- DESELECT ALL: Deselects all of the currently selected tags.
Note: Liquid UI for Android currently supports only ASCII-encoded RFID tag(s).
