SAP NetWeaver AS ABAP Release 751, ©Copyright 2017 SAP AG. All rights reserved.ABAP - Keyword Documentation → ABAP - Release-Specific Changes → Changes in Releases 7.5x → Changes in Release 7.51 →
ABAP Channels in Release 7.51
Length Restriction for AMC
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.
Suppressing Standalone 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.