Hello @priyanshu_soni    You can skip the "Timestamp" part as the same is inserted by HBase implicitly. I tried the same Query as you, excluding the Timestamp & the same was Successful:   hbase(main):018:0> put 'Table_X1','125','Cf1:CheckItem','{"ID" : "1334134","Name" : "Apparel Fabric","Path" : "Arts, Crafts & Sewing/Fabric/Apparel Fabric"}' Took 0.0077 seconds hbase(main):019:0> scan 'Table_X1' ROW COLUMN+CELL 125 column=Cf1:CheckItem, timestamp=1621593487680, value={"ID" : "1334134","Name" : "Apparel Fabric","Path" : "Arts, Crafts & Sewing/Fabric/Apparel Fabric"} 1 row(s) Took 0.0057 seconds As you may see above, the "timestamp" field corresponds to the Epoch Timestamp of the Inserted Row Time of Operation. If you wish to explicitly specify the Timestamp, You can include a EpochTime as shared below: hbase(main):020:0> put 'Table_X1','126','Cf1:CheckItem','{"ID" : "1334134","Name" : "Apparel Fabric","Path" : "Arts, Crafts & Sewing/Fabric/Apparel Fabric"}',1621593487680 Took 0.0202 seconds hbase(main):021:0> scan 'Table_X1' ROW COLUMN+CELL 125 column=Cf1:CheckItem, timestamp=1621593487680, value={"ID" : "1334134","Name" : "Apparel Fabric","Path" : "Arts, Crafts & Sewing/Fabric/Apparel Fabric"} 126 column=Cf1:CheckItem, timestamp=1621593487680, value={"ID" : "1334134","Name" : "Apparel Fabric","Path" : "Arts, Crafts & Sewing/Fabric/Apparel Fabric"} 2 row(s) Took 0.0071 seconds   Let us know if you have any issues with the Put Operation.   - Smarak ... View more