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 Queue Type Selection for the Initial Data Transfer

Data transfers using the Core Interface (CIF) generally take place in serial using queues. For this, there are two queue types available: outbound queues and inbound queues.

You can specify the queue type that should be used for data transfer for a certain target system. You assign a queue type to a target system in the ERP system in CIF Customizing in the ERP System . This setting is dependent upon the current system. Since the production system usually has a different target system from the system in which Customizing is carried out, you also have to make this setting in the production system. You can make this setting in the SAP menu under Start of the navigation path Logistics Next navigation step Central Functions Next navigation step Supply Chain Planning Interface Next navigation step Core Interface Advanced Planner and Optimizer Next navigation step Environment Next navigation step Current Settings Next navigation step Set Target System and Queue Type, End of the navigation path or by using transaction CFC1.

As standard, the initial data transfer is carried out using outbound queues. If you enter a logical target system in CFC1, the system automatically suggests the Outbound Queues queue type. The Outbound Queues setting means that queue processing is controlled by the sending system.This can lead to problems if the target system does not have sufficient free work processes to process the queues.

If you are expecting a large amount of integration data and insufficient work process resources in the target system, it may be useful to change to inbound queues. The Inbound Queues setting means that queue processing is controlled by the target system.If there are insufficient work processes available here, the data is first saved temporarily in inbound processing in the target system and then processed gradually as resources become available. For more information, see Setting Up the Target System and Assigning the Queue Type .