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ABAP Channels in ABAP Release 7.51 ITOC
ABAP_MODIFICATION_NN Length Restriction for AMC and APC
The length restriction for messages that can be sent using AMC has been extended from approximately 30,000 bytes to approximately 1 MB. This limit can be increased even further by changing the profile parameter rdisp/long_messages/max_length. The same applies to APC messages, which are sent with an attached client object using the interface IF_APC_WSP_CLIENT_CONN_ATTACH.
ABAP_MODIFICATION_NN Suppressing AMC Messages
The new parameter I_SUPPRESS_ECHO of the method CREATE_MESSAGE_PRODUCER of the class CL_AMC_CHANNEL_MANAGER can be used to control whether AMC messages can be sent to the current ABAP session or not.
