Hello @Madhu Balan ,
Thanks for the ask and using the Microsoft Q&A platform .
At this time 5K is the limit for the Lookup(LU) activity and so you are hitting the limit . SInce your source is SQL you use the watermark logic if possible to get around this limit . The watermark is implemented here in this pipeline .
Please do let me know how it goes .
Thanks
Himanshu
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