Are there any inventory management systems that let field teams update ad inventory from mobile devices?

Yes. There are inventory management systems and related ad-ops platforms that support field teams updating ad inventory from mobile devices, though the exact capability depends on the type of inventory and workflow.

Common options

• Mobile-friendly CRM / field service systems with custom inventory modules

  • Examples: Salesforce Field Service, Zoho Inventory, Odoo, NetSuite with mobile access/custom apps.
  • Good for teams that need to update stock, locations, or asset availability on the go.

• Retail media / OOH / ad inventory platforms

  • If you mean physical ad inventory like billboards, kiosks, transit ads, or in-store media, some specialized systems let reps or field crews:
    • mark assets as available/unavailable,
    • upload photos,
    • update maintenance status,
    • log installation/completion from a phone.
  • These are often custom-built or part of a broader media asset management system.

• Ad ops / digital inventory platforms

  • If you mean digital ad inventory like impressions, placements, or direct-sold sponsorships, mobile updates are less common in standard ad servers, but some systems allow:
    • status changes,
    • campaign notes,
    • site audits,
    • proof-of-play uploads,
    • field verification via mobile web app.

What to look for

If your field team needs mobile updates, prioritize:

• iOS/Android app or mobile web app
• Offline mode
• Photo upload and GPS tagging
• Role-based permissions
• Real-time sync with the inventory database
• Barcode/QR scanning
• Audit trail / change history

Likely best fit

• For physical ad assets, look at field service + asset management tools or OOH inventory management platforms.
• For digital ad inventory, you may need a custom workflow on top of a CMS, CRM, or ad ops system.

If you tell me what kind of ad inventory you mean — billboards/OOH, retail media, in-store displays, or digital ad placements — I can suggest more specific systems.