Exceptions

In newer BAdIs, it is also possible to generate an error message and thus interrupt processing, for example. Technically, this is done using object-oriented exceptions.
-> The signature tells you whether an exception is available for a BAdI:

The following example implementations refer to the BAdI /AEB/AES_CONS_INV_01, but can also be transferred to other BAdIs that provide exceptions.

IF im_vbrk-land1 = 'DE'.
    RAISE EXCEPTION TYPE /aeb/cx_aes_pb_cons_ete_sc.
  ENDIF.

Interrupt processing, with error message:

• Create a new subclass for the superclass of the exception. For example, a subclass with the name
  ZCX_AEB_AES for the superclass /AEB/CX_AES_PB_CONS_ETE_SC.
• Define the subclass as class type Exception class, deactivate the property "With messages of message classes as exception texts" and activate the Final property.
• Define the corresponding long texts for the required error messages in the created subclass in the
  Texts folder. The newly created text IDs should begin with "ZZ", for example,
  zzmessage_wrong_country.
• Save and activate the subclass.
• In the BAdI, call an exception for the new subclass and enter the text ID of the relevant long text for
  the error message:

IF im_vbrk-land1 = 'DE'.
    RAISE EXCEPTION TYPE zcx_aeb_aes
      EXPORTING 
        textid = zcx_aeb_aes=>zzmessage_wrong_country.
  ENDIF.

Interrupt processing, with error message including parameter value:

• Within the error message, it is possible to determine part of the displayed text dynamically using a
  parameter.
• To do this, define a new variable in the subclass of the exception. (Folder Attributes, Type of attribute
  is Instance Attribute, the visibility is public, Type corresponds to the intended value). Example:
  Variable ZZVBELN, type VBELN.
• Use the variable when defining the long text, including % characters. Example for the content of a
  long text: "Country for document %ZZVBELN% is not valid".
• In the BAdI, call the exception with the corresponding parameter:

IF im_vbrk-land1 = 'DE'.
    RAISE EXCEPTION TYPE zcx_aeb_aes
      EXPORTING 
        textid = zcx_aeb_aes=>zzmessage_wrong_country
        zzvbeln = im_vbrk-vbeln.
  ENDIF.