SAP ABAP Program RIWP_DEFINE_CALLBACK (Definition of Callback Destination in the Target System) is using

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• Data Element (1)
• Table/Structure Field (8)
• Function Module (1)
• Message Class (1)
• Message Number (1)
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• Table (1)

#	Object Type	Object Name	Object Description	Note
1	Message Number	IWP - 301	Communication error: &1. (See ST22)