Message type: E = Error
Message class:  ID_WT - International Development - Withholding Tax Reporting Tool 
Message number: 073
Message text: (E) The First Forname of Sub-Contractor &2 of Company Code &1 is missing.
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The SAP error message ID_WT073 (E) indicates that there is a missing first name for a subcontractor in the system. This error typically arises when you are trying to process transactions related to subcontractors, such as creating or updating vendor master data, and the required information is incomplete.
Cause: The error occurs because the first name of the subcontractor (vendor) is not filled in the relevant fields in the vendor master data. This is a mandatory field for the creation or maintenance of vendor records in SAP.
Solution: To resolve this error, you need to ensure that the first name of the subcontractor is entered correctly in the vendor master data. Here are the steps to do this: Access Vendor Master Data: Go to the transaction code XK02 (Change Vendor) or MK02 (Change Vendor for Purchasing) depending on your needs. Enter Company Code and Vendor: Input the relevant company code and the vendor number for the subcontractor that
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