I am trying to copy data from a system using copy activity.My source is REST and my sink data format is JSON.Data is stored in ADLS .

When big decimals are getting copied the decimal is getting expanded- for example if decimal is 155575307.6085215 then in ADLS i could see it as 155575307.60852146

similar examples

source->5.6982967562685

destn->.5.69829675626848

It is not happening for all values but it happens for randomn values.

I could not use schema mapping here as it is common pipeline which takes data from multiple rest sources and stores in ADLS.

Can anyone help in understanding why this happens when using REST API as source.