PLACER APPLICATION REQUESTS AND TRIGGER EVENTS

When initiating a request, the placer application will generate and send an SRM message containing all of the information necessary to communicate the desired action to the filler application. All required segments and fields (both explicitly required and conditionally required) should be provided to the filler application, as defined in this chapter. When the filler application receives the transaction, it acknowledges it with the appropriate accept acknowledgment using an ACK message (assuming that the enhanced acknowledgment mode is in use). After processing the request at the application level, the filler acknowledges the transaction with the appropriate application acknowledgment in an SRR message (again assuming that an application acknowledgment was requested under the enhanced acknowledgment mode, or that the original acknowledgment mode is in use). Applying the explanations of the various application acknowledgment codes in the context of this chapter, an application accept from the filler means that the request was processed and accepted by the filler. An application error from the filler means that the request was processed and denied. An application reject from the filler means that the request was not, and could not, be processed due to one or more reasons unrelated to its content (for example: it fails the basic application protocol validation, the filler system is down, or there was an internal error). When appropriate, an SRR message with an application accept acknowledgment will contain further information on the request that was processed.