Monitoring Sequences

You access the sequence monitor either from the message monitor (transaction code SRT_MONI) or directly using transaction code SRT_MONIS. This opens the initial sequence selection screen, on which you can either enter a list of explicit sequence IDs or make a selection based on a time range and some sequence attributes. From this selection screen, you enter the sequence list screen.

A sequence controls the reliable messaging - WSRM or SAP's Plain Soap. In SAP's WSRM implementation messages with quality of service exactly once (EO) are also sent in the context of a WSRM sequence. In this case, a sequence has only one business message and a technical terminate message. This is why a related sequence exists for all asynchronous messages. The sequences related to a certain message set are displayed in the sequence list. In the sequence list, you again have reselection options.

You can trigger a soft or a hard termination of a selected sequence. A soft termination closes the sequence on the consumer side for new messages. If the sequence contains unfinished messages, they are processed. After the last message is processed, the sequence is set to the status Closed. In case of a hard termination the sequence is terminated immediately and all messages that are not processed yet are canceled. As the message is the central entity, you usually access the sequence list from the message list. In some cases, however, it is useful or even necessary to enter the message monitor by selecting a sequence directly. For example, if there are no messages for a persistent WSRM sequence, this sequence can only be found from the message selection entry.