{"slug":"authorize-net-aim-sim","name":"Authorize.net AIM/SIM","host":"secure.authorize.net","site":"https://authorize.net","category":"payments","docsUrl":null,"sources":[{"kind":"archive","url":"https://developer.authorize.net/api/upgrade_guide.html"}],"url":"https://www.okapi.bot/providers/authorize-net-aim-sim/","json":"https://www.okapi.bot/api/v1/providers/authorize-net-aim-sim.json","breakingChanges":[{"slug":"post-gateway-transact-dll-is-deprecated","api":"authorize-net-aim-sim","title":"POST /gateway/transact.dll is deprecated","kind":"removal","outcome":"fails","model":null,"announcedAt":null,"effectiveAt":null,"scope":null,"calls":["POST /gateway/transact.dll"],"method":"POST","path":"/gateway/transact.dll","source":{"url":"https://developer.authorize.net/api/upgrade_guide.html","kind":"archive"},"quote":"AIM | Deprecated | Authorize.net API | SOAP API | Deprecated | Authorize.net API | SIM | Deprecated | Accept Host |","migration":"Move AIM calls to the Authorize.net API (createTransactionRequest on POST https://api.authorize.net/xml/v1/request.api) and SIM payment forms to Accept Hosted.","migrationChange":null,"needsDecision":"SIM's hosted form moves to Accept Hosted, a different hosted payment page the merchant configures anew.","text":{"summary":"Authorize.net deprecated POST /gateway/transact.dll without a shutdown date. Calls hitting this endpoint will fail under the planned removal. The deprecation covers both AIM integrations and SIM payment forms that submit to this gateway path.","migration":"Move AIM calls to the Authorize.net API by using createTransactionRequest on the newer XML or JSON request endpoint. Replace SIM payment forms with Accept Hosted, which requires configuring a new hosted payment page rather than simply switching an endpoint.","by":"writer"},"publishedAt":"2026-10-23T10:43:02.080Z","updatedAt":"2026-10-26T21:37:30.128Z","status":"deprecated","tone":"deprecated","url":"https://www.okapi.bot/providers/authorize-net-aim-sim/breaking-changes/post-gateway-transact-dll-is-deprecated/"}]}