SAP CRM扩展字段的元数据仓库

AXT_RUN_FIELDUSE

There are also some other metadata repository tables which would be accessed in the runtime:

AXT_RUN_FIELDDEF

Extensibility runtime field definition

One example:

From table above, every AET field should have a data type assigned during creation.

One data type has one dedicated handler class:

As a result if we would like to "cheat" AET framework to consider the extension field created by S4 Key user tool also as an AET field, we have to insert one entry to this table manually, OR ELSE:

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