He claimed that wrong information given by Tommy was received to mislead him to make a wrong amendment.

It was the only transaction amended from Tommy to Jimmy in April.

2 answers

He claimed that wrong information given by Tommy was received to mislead him to make a wrong amendment.

It was the only transaction amended from Tommy to Jimmy in April.

Pls comment if it is correct in grammar ... thanks.
Neither sentence is clear in meaning.

He claimed that wrong information given by Tommy was received to mislead him to make a wrong amendment.
He claimed that Tommy gave him the wrong information, which led him to make a wrong decision.

It was the only transaction amended from Tommy to Jimmy in April.
It was the only transaction between Tommy and Jimmy in April.

The word "amendment" as you've used it in these two sentences doesn't make sense, so I removed it.