medusajs/medusa · error · MedusaError

Customer group with id "${req.params.id}" not found

Error message

Customer group with id "${req.params.id}" not found

What it means

The POST (update) /admin/customer-groups/:id route refetches the group by id before delegating to updateCustomerGroupsWorkflow; a missing group throws NOT_FOUND (HTTP 404).

Source

Thrown at packages/medusa/src/api/admin/customer-groups/[id]/route.ts:47

  }

  res.status(200).json({ customer_group: customerGroup })
}

export const POST = async (
  req: AuthenticatedMedusaRequest<
    HttpTypes.AdminUpdateCustomerGroup,
    HttpTypes.SelectParams
  >,
  res: MedusaResponse<HttpTypes.AdminCustomerGroupResponse>
) => {
  const existingCustomerGroup = await refetchCustomerGroup(
    req.params.id,
    req.scope,
    ["id"]
  )
  if (!existingCustomerGroup) {
    throw new MedusaError(
      MedusaError.Types.NOT_FOUND,
      `Customer group with id "${req.params.id}" not found`
    )
  }

  await updateCustomerGroupsWorkflow(req.scope).run({
    input: {
      selector: { id: req.params.id },
      update: req.validatedBody,
    },
  })

  const customerGroup = await refetchCustomerGroup(
    req.params.id,
    req.scope,
    req.queryConfig.fields
  )
  res.status(200).json({ customer_group: customerGroup })

View on GitHub (pinned to 5e06e544a2)

Solutions

1. Check existence with GET /admin/customer-groups/:id before update
2. Refresh group ids in scripts after delete operations
3. Surface 404 as 'group no longer exists' in UI instead of a generic error

const exists = (await sdk.admin.customerGroup.list({ id })).customer_groups.length > 0
if (!exists) throw new Error("group deleted before update")

null

try { await updateGroup(id, payload) } catch (e) { if (e.statusCode === 404) { reloadGroups(); alertUser() } else throw e }

When it happens

Trigger: POST /admin/customer-groups/:id with update payload for a nonexistent group id.

Common situations: Concurrent deletion by another admin; automation scripts with cached group ids.

Related errors

• Campaign with id "${req.params.id}" not found
• Customer group with id: ${req.params.id} not found
• Customer with id "${req.params.id}" not found
• Campaign with id: ${req.params.id} was not found
• Claim with id: ${req.params.id} was not found

AI-assisted analysis of medusajs/medusa@5e06e544a2 (2026-08-27). Data as JSON: /api/errors/d832b016523c3392. Report an issue: GitHub.