Dear Rohit,
The integration of SD Condition Type with FI Withholding Tax is Tax type in FI.
In SD you have to create a condition type, in your case ZTCS, the same conditon has to be assigned to withholding tax type created in FI withholding tax.
The Tax code has to be configured in FI withholding tax, with the tax type created for TCS.
Also if you have gone through the note, everything is already mentioned there.
Note: You do not have to assign GL in OB40 as the transaction id for input and output tax and you want to configure retention/withholding Tax.
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Regards
Lakhbir Singh
