To accommodate multiple shelf facings, dual-placements, or cross-merchandising displays (e.g., an item placed on both a standard grocery shelf and a promotional endcap), storeLink allows a single Product ID / UPC to be assigned to multiple physical ESL devices simultaneously.

Important Hardware Rule: A physical ESL device can only display one product's data at a time. However, a single product's data can be mirrored across multiple ESL hardware units.

The Multi-Link Safety Prompt

To prevent accidental duplicate assignments during manual configurations, the system includes an automated safeguard:

If UPC 1 is already linked to ESL 1, and a user attempts to map that same UPC 1 to a new device (ESL 2), the system will display a confirmation modal:

"You are about to link this UPC to more than one device, do you want to proceed?"

• Cancel: Clicking this will abort the operation. The new assignment to ESL 2 is discarded, and the existing mapping remains unchanged.
• Yes: Clicking this confirms the action. UPC 1 will successfully link to ESL 2 while safely maintaining its original connection to ESL 1.

Data Grid & Order Presentation

When multi-linking is active, the platform adjusts its data presentation to ensure absolute tracking clarity across your views:

• The Multi-Link Indicator: A distinct multi-link icon will appear on every individual row in the data grid associated with that shared UPC, giving you a quick visual cue that the product is mirrored across multiple displays.

• Row Separation: Within the Device Management and Performance screens, each unique UPC-and-Device combination is granted its own independent row. This allows you to track and troubleshoot individual hardware units seamlessly.