Here we would like to draw your attention to 0FILASUBST0 transaction code in SAP. As we know it is being used in the SAP FI-LA (Lease Accounting in FI) component which is coming under FI module (Financial Accounting). 0FILASUBST0 is a transaction code used for Substitution in SAP.

It comes under the package for Lease Accounting General Customizing (FI_LA_GF_CUST). When we execute this transaction code, SAPMFILACUST is the normal standard SAP program that is being executed in background. Transaction code 0FILASUBST0 is included in the SAP component for EA-APPL.
Transaction 0FILASUBST0 technical data table
| Tcode | 0FILASUBST0 |
| Usage | Substitution |
| Module | FI |
| Sub Module | FI-LA |
| SAP Package | FI_LA_GF_CUST |
| Program running | SAPMFILACUST |
| Component | EA-APPL |