system-idCopyCopy for LLMCopy page as Markdown for LLMsView as MarkdownOpen this page as MarkdownOpen in ChatGPTGet insights from ChatGPTOpen in ClaudeGet insights from ClaudeName or IP address of the sending system (system-id of the merchant)↔ Request/Response parameter<system-id>TypeConditionRestrictionxs:stringMandatoryLength <=255