API credentials rejected despite correct keys
Checkout fails with invalid authentication values even when the API login and transaction key are re-entered correctly.
Tier I · Proven The best-established problems.
5 public reports · first reported 12 April 2024 · last reported 2 October 2025
What's going wrong
Store owners setting up this Authorize.net gateway report that checkout fails with an invalid authentication message even after they re-enter the API login ID, transaction key and public key and confirm them against another working site. The problem appears on new installs, test-mode sites, temporary staging domains and sites moving from another Authorize.net plugin. Several owners say their hosts found no blocking, and they cannot tell which value is wrong. Agencies and freelancers lose hours on this setup step. A credential checker that tests each value separately and names the one the gateway rejects would shorten setup for every new site.
AI-assisted: written with the help of AI from the reports.
Products affected
Secure Gateway for Authorize.net and WooCommerce by Pledged Plugins.
Related problems
Who has this problem
1 business found.
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