Message type: E = Error
Message class:  FKKID_WHT_MSG - Messages for WHT Loc. Cross-Country(FI-CA) 
Message number: 015
Message text: The identification for linked partners is not specified( partner &1)
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The SAP error message FKKID_WHT_MSG015 indicates that there is an issue with the identification of linked partners in the context of withholding tax processing. This error typically arises when the system expects a specific identification for a partner (such as a vendor or customer) but cannot find it.
Cause: The error message is triggered when: The linked partner (identified as &1 in the error message) does not have the necessary identification data set up in the system. The configuration for withholding tax is incomplete or incorrect for the specific partner. There may be missing entries in the master data for the partner, such as tax identification numbers or withholding tax types.
Solution: To resolve this error, you can take the following steps: Check Partner Master Data: Go to the master data of the partner (vendor or customer) identified in the error message. Ensure that all necessary fields related to withholding tax are filled out, including tax identification numbers and withholding
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