How to check duplication in AIF.

Three steps for check duplication message

1. Define an AIF named check:

Path:  SAP Application Interface Framework->Interface Development->Define Checks:

Here, custom message could be assigned.

The table ZTEST_TABLE_V2 also could be master data or transaction data table.

With this check,  there are two options:

a) X Check Existence only: then the inbound message must contain data in this table, otherwise stop with error.

b) Check Non-Existence: then the inbound message must not contain data in this table, otherwise stop with error.

2.Define custom table

3.Define structure mapping with AIF named check:

Path:  SAP Application Interface Framework->Interface Development->Define Structure Mappings:

4.Test message with exist data in custom table:

In AIF Error Handling:

5.Test message with not existing data in custom table:

Ok.