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Correios API login and token setup keep failing

Correios webservice login and token setup fail even with correct credentials, so service lists and labels cannot load.

Tier I · Proven The best-established problems.

5 public reports · first reported 15 June 2024 · last reported 11 September 2026

Idea report · $19 · No contacts · All sales final

See a sample idea report

What's going wrong

Several shop owners say the Correios login details look correct, yet the plugin cannot load the service list or generate shipping options.

AI-assisted: written with the help of AI from the reports. The idea report has the full summary.

In the idea report

  • The full summary.
  • The products the 5 reports are about, and how many came each month.
  • Related problems.

No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.