medusajs/medusa

Duplicate React key warning in `CustomerOrderSection` due to duplicate `"actions"` column IDs

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#15 485 ouverte le 24 mai 2026

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good first issuetype: bug

Description

Description

While navigating to the customer detail orders table, a React warning appears in the console:

Warning: Encountered two children with the same key, `0_actions`

After tracing the issue, it seems to originate from duplicate TanStack Table display column IDs.

useOrderTableColumns already defines a display column with:

columnHelper.display({
  id: "actions",
  cell: ({ row }) => {
    return <CountryCell country={country} />
  },
})

Then CustomerOrderSection appends another display column:

columnHelper.display({
  id: "actions",
  cell: ({ row }) => <CustomerOrderActions order={row.original} />,
})

This results in duplicate column IDs inside the same table, causing TanStack Table to generate duplicate internal keys such as:

0_actions

which triggers the React warning.

Expected behavior

Column IDs should be unique.

The CountryCell display column appears to semantically represent a country/shipping country column, so renaming its ID from:

id: "actions"

to something like:

id: "country"

would likely resolve the warning.

Environment

  • Admin dashboard
  • TanStack Table

Guide contributeur

Stack technique
typescriptreact
Domaine
frontend
Type d'issue
bug
DifficultéDifficulté estimée pour un nouveau contributeur, de 1 pour un très petit changement à 5 pour un travail expert.
2
Temps estiméFourchette de temps approximative pour investiguer, implémenter, tester et préparer une pull request.
under 1 hour
Statut d'activitéDisponibilité apparente de l'issue : fraîche, active, ancienne, bloquée ou en attente d'un mainteneur.
fresh
ClartéClarté avec laquelle l'issue explique le changement attendu, les critères d'acceptation et la prochaine étape.
clear
Prérequis
ReactTanStack TableMedusa admin setup
Accessibilité débutantScore de 1 à 100 estimant l'accessibilité de cette issue pour un premier contributeur.
85
Direction de recherche
Look at the file `useOrderTableColumns` which defines a display column with id 'actions' for a CountryCell. Also check `CustomerOrderSection` where another display column with the same id is appended. Rename the id in `useOrderTableColumns` from 'actions' to 'country' to eliminate the duplicate key warning. Ensure no other references to that column id break.