3798565 - Error Message CX_SADL_ENTITY_CUD_DISABLED in Manage Substitution/Validation Rules Apps

When attempting to save a substitution rule that includes a table lookup in the app "Manage Substitution and Validation Rules", the save operation fails and the following errors are displayed:

1. CX_SADL_ENTITY_CUD_DISABLED
2. An exception was raised
   /IWBEP/CX_MGW_BUSI_EXCEPTION
   An exception was raised

The substitution rule cannot be saved as long as it contains a table lookup step.

SAP S/4HANA Public Cloud 2608

Substitution rules, table lookup, Manage Substitution and Validation Rules, CX_SADL_ENTITY_CUD_DISABLED, /IWBEP/CX_MGW_BUSI_EXCEPTION, _SUBSTNTABLELOOKUPFIELDMAPPING, C_FINSUBSTI, save error, validation rules, S/4HANA Public Cloud , KBA , FI-SL-VSR-2CL , Validation, Substitution and Rules (Public Cloud) , Problem