Paged messages ERP

The CANCEL command is used to terminate a single multi-RU chain, or page, while the LUSTATUS is used to terminate the process receiving the multichain, or paged, message. If IMS receives a CANCEL during an input autopaged message without receiving the subsequent LUSTATUS - abort on the next input RU, IMS returns an exception response indicating selective receiver ERP followed by an FMH7 with the abort sense code X'0865' and an appropriate ERP message. Only the LUSTATUS - abort need be sent or received when the error is detected while between chains.

Errors detected on the first page of an autopaged input message result in IMS either sending a contention sense code or a selective receiver ERP sense code followed by an FMH7 indicating one of the nonfunction abort sense codes and an appropriate error message. Errors detected on nonfirst pages of an autopaged input message or for input page request received during an IMS demand-paged output message result in IMS sending the selective receiver ERP sense code followed by an FMH7 indicating the X'08650000' function abort sense code and an appropriate error message. The function abort sense code is used in these cases to cause the sending process (of autopaged input or demand-paged requests), rather than just a single chain or page, to be terminated.