Performed vlookup using Joiner node. How can i call an error if there are blank fields in any of the columns after performing the Vlookup.

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Where and which node should i use for this purpose. Thank you !

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After the joiner you could create a variable which checks for missing data and if data is missing then use this as trigger for the Breakpoint node
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Thank you sir. It worked :slightly_smiling_face:

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